Question

Write the equation of the line that passes through (-4, 12) and (7, 23).
A. y = x + 16
B. y = 3x + 18
C. y = 1/6 x + 16
D. y = 1/3 x + 18

Answer 1

The formula is y=mx+b

The b is the y intercept, and the m is the slope.

Answer 2

The formula to find slope is y-1y/x-x1=m

Answer 3

so it cant be a?

Answer 4

whats the first step?

Answer 5

confused now

Answer 6

By what?

Answer 7

by that equation u showed me

Answer 8

That equation is the formula to find the slope of a line. You use the two points.

Answer 9

Now you have the slope, 11/11 which is just 1 and when its just one, you don't put any number for slope.

Answer 10

ok

Answer 11

So: y=x+b would count on this occasion.

Answer 12

So it would be A.

Answer 13

so how would i use that equation for this question

Answer 14

ok yay thank you

Answer 15

No problem. :]

Answer 16

can i ask another?

Answer 17

Sure, just post in a new question. :)

Answer 18

ok i will if i need more help

Answer 19

Okay. :]