Question

A line passes through the points A(–1, 7) and B(1, 3). b Write an equation of this line.

Answer 1

-2

Explanation:

Formula

(
`y^(2)`-
`y^(1)`) ÷ (
`x^(2) - x^(1)`)

So, (3 - 7) / (1 - (-1)) = -4/2

-4/2 = -2/1 = -2

I really hope this helps

Answer 2

A (-1,7) B(1,3)

AB= y2-y1 / x2 - x1
= 3 - 7/ -1 -1
= -4/ -2
= 2x

Y= mx + c
3= 2(1) + c
3=2 + c
3-2=c
1=c

Equation of line = y= 2x + 1