Question

Please help me

A line passes through the points (1, 2) and (3,-1). Calculate the slope and write the equation of the line in slope-intercept form.


A.-3/2 ; y = -3/2 x - 7/2


B.3/2 ; y = 3/2 x - 7/2


C.3/2 ; y = 3/2 x + 7/2


D.-3/2 ; y = -3/2 x + 7/2

Answer 1

There's a formula on how to calculate the slope? You know what is it?

Answer 2

no I dont @Zale101

Answer 3

\[m=(y_2-y_1)/(x_2-x_1)\]

Answer 4

here's the formula, now plug in the points (1, 2) and (3,-1)

Answer 5

can u do that?

Answer 6

yes @Zale101

Answer 7

(x2, y2)=(3,-1)
(x1,y1)=(1,2)
now plug them in, can u do this forme?