CHAPTER 4

Question 0

Gradient formula

Answer 0

m = rise/run
eg) rise = 4
run = 2
m = 4/2 = 2

Question 1

Gradient

Answer 1

/ = positive
\ = negative
- = zero
| = undefined

Question 2

Straight line for gradient

Answer 2

y = mx + b

mx = gradient
b = y-intercept

Question 3

Midpoint formula?

Answer 3

m = (x1 + x2/2 , y1 +y2/2)

Question 4

Gradient formula?

Answer 4

m = y2 - y1/ x2-x1

Question 5

Distance formula?

Answer 5

d =|(x2 - x1) + (y2 - y1)