Use the given information to write the equation of the line in slope-intercept form: y = mx + b through the points(−2,−1)and(3,9)

A
y=2x+3

B
y=8x−15

C
y=−2x+15

D
y=12x−3

Step-by-step explanation:

Given

(-2,-1) and (3,9).

Required

Determine the line equation

First, we calculate slope (m)

Where

So, we have:

The equation is then calculated using:

Open bracket

Subtract 1 from both sides

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

42

step-by-step explanation:

256/6=42