Equations of Straight Lines

2020.10.29 10:57 am - 11:40 am

Teaching point: How do we write the gradient intercept form of a line?

Do Now

ABC is a triangle with vertices A(1,1), B(4,7) and C(8,a).

(a) Find the gradient of the line AB.

(7-1)/(4-1) = 6/3 = 2

The gradient of BC is -½

(b) Find the value of a.

(a-7)/(8-4) = -1/2

(a-7)/(4) = -1/2

2(a-7)=-4

2a - 14 = -4

2a = 10

A =5

Try to show work in the google form if you can

Agenda

Do Now (5-10 minutes)

Mini Lesson: Equations of Straight lines (15 minutes)

Classwork (15 Minutes)

Closure and Homework (5 Minutes)

Equations of Straight Lines (15 minutes)

2020.10.29 Equations of Straight Lines

Classwork

Start the Class Work due next week.