The+Linear+Function

__**The Linear Function **__ Linear Functions are used in many real-life situations, such as speed, distance and time calculations, petrol prices, taxi prices and mobile phone plans. __**Lesson 1 - Equations of Straight Lines **__ Here is a song about straight line graphs. media type="youtube" key="DK5YS7ti9KM?rel=0" height="360" width="480" align="center"

Open this file and save it to your laptop for the lesson notes on Exercise 10.1  Here is another song about straight line graphs. media type="youtube" key="9PBrc66g5mY?rel=0" height="360" width="480" align="center"

__**Lesson 2 - Gradients **__ Watch this song about the equation of a straight line. media type="youtube" key="TYsWIWckKeg?rel=0" height="360" width="640" align="center"

Open this file and save it to your laptop for the lesson notes on Exercise 10.2 Try this activity to revise coordinates. Coordinates  __**Lesson 3 - Point-Gradient Formula**__ Here is a silly video about straight lines. media type="youtube" key="eAZVNRhpWFs?rel=0" height="360" width="480" align="center"

 Open this file and save it to your laptop for the lesson notes on Exercise 10.3 <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Try the activity from the website below. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Line Plotter <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">__**Lesson 4 - Parallel and Perpendicular Lines**__ <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Try the activity from the website below. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Graphs <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Open this file and save it to your laptop for the lesson notes on Exercise 10.4 <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Here is another activity on graphing straight lines. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Graphs <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">__**Lesson 5 - Intersection of Two Straight Lines**__ <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Try the activity from the website below. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Planet Hop <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Open this file and save it to your laptop for the lesson notes on Exercise 10.5 <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Watch this video about straight line graphs. media type="youtube" key="HmXY_-akhOE?rel=0" height="360" width="480" align="center"

<span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">__**Lesson 6 - Equation of a Line through the Point of Intersection of Two Other Lines**__ <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Watch this video on the gradient between two points. media type="youtube" key="itviLof4a5o?rel=0" height="360" width="480" align="center"

<span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Open this file and save it to your laptop for the lesson notes on Exercise 10.6 <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Watch this video to find the equation of a line given the slope and a point. media type="youtube" key="9CBTjQOJ57Y?rel=0" height="360" width="640" align="center"

<span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">__**Lesson 7 - Distance Between Two Points and Midpoint of an Interval**__ <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Watch this video about the point-gradient formula. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">media type="youtube" key="3rErciUOMP4?rel=0" height="360" width="640" <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Open this file and save it to your laptop for the lesson notes on Exercise 10.7 <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Watch this video about identifying parallel lines and calculating slope. media type="youtube" key="d404Fffp3-Y?rel=0" height="360" width="480" align="center" <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">__**Lesson 8 - Perpendicular Distance of a Point from a Line**__ <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Watch this video about parallel and perpendicular lines. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">media type="youtube" key="uaFs4B4Z97s?rel=0" height="360" width="480" <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Open this file and save it to your laptop for the lesson notes on Exercise 10.8 <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;"> <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Now try the activity below. <span style="display: block; font-family: 'Comic Sans MS',cursive; font-size: 20px; text-align: center;">Line Segments