Question

I need some help please this is confusing to me ☹️

Answer 1

well if you look at the y it equals y= x-20

Explanation:

Answer 2

y = x-20

Explanation:

finding the equation of the line

get 2 points A and B , they are an on the line

make sure its in the form (x,y)

A = (0 , -20)

B = ( 70 , 50)

now get the gradient

gradient =
`(y2-y1)/(x2-x1)`

=
`(50 - - 20)/(70-0)`

= 70/70

gradient = 1

now make the equation

m is the gradient

y- y1 = m (x-x1)

y- -20 = 1 (x - 0)

y + 20 = x

put in the form y = mx +c

therefore

y = x - 20