Question

Write the equation of the line that passes through (1, 5) and (–2, 14) in slope-intercept form.

a) y=3x + 2
b) y= 3x + 8
c) y = -3x - 2
d) y = -3x + 8

Answer 1

I just need the formula. I cant find it anywhere.

Answer 2

Do you know how to calculate the rate of change?

Answer 3

Use \( y - y_1 = m(x - x_1) \) and then turn it into point slope form

Answer 4

\[\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\] will give you the slope, and then use the formula @Nixy gave you.

Answer 5

You can get the slope with \( \huge m = \frac{y_2-y_1}{x_2 - x_1} \)

Answer 6

y = -3x + 8

Answer 7

You are correct @Barrelracing