Question

A line passes through the points (7,6) and (8,8) What is its equation in slope intercept form?​

Answer 1

y = 2x - 8

Explanation:

The slope:
`m=(y_2-y_1)/(x_2-x_1)=(8-6)/(8-7)=\frac21=2`

y = mx + b ← slope intercept form

(8, 8) ⇒ x = 8, y = 8

so:

8 = 2·8 + b

b = - 8

The equation: y = 2x - 8