Question

1. (5,8) m= 3
It wants me to write this in slope intercept form

Answer 1

The answer is y=3x-7.
Sorry the picture is a bit blurry but basically, you use the points given (5,8) and plug it into the equation y=mx+b. They already give you the slope, 3, so you need to find the y-intercept. To do so, plug in and solve. You’ll get -7=b, so the equation is y=3x-7.

Answer 2

The answer is: y = 3x - 7

Explanation:

Given point: (5, 8).

Slope m = 3

Use the point slope form and solve for y:

y - y1 = m(x - x1)

y - 8 = 3(x - 5)

y - 8 = 3x - 15

y = 3x - 15 + 8

y = 3x - 7

Proof:

f(x) = 3x - 7

f(5) = 3(5) - 7

= 15 - 7 = 8, giving (5, 8)