Question

Which is an equation in slope-intercept form for the line passing through (5, 1) and (–4, 7).

Answer 1

A= http://static.k12.com/calms_media/media/212500_213000/212689/1/ab47fb347f4f3e4c5f779bc6febd07f153332c60/09_01_ST_10_bc.gif

Answer 2

Do you know the formula for slope given two points?

Answer 3

B= http://static.k12.com/calms_media/media/212500_213000/212687/1/9992ab389cca02760faf077c3afb7e376c6e9897/09_01_ST_10_ba.gif

Answer 4

oh, uh, is that your answer?

Answer 5

no this are the options

Answer 6

C= http://static.k12.com/calms_media/media/212500_213000/212690/1/4ddffcf8d26ce268aca3bcf219cf545dcfbe4acf/09_01_ST_10_bd.gif

Answer 7

D= http://static.k12.com/calms_media/media/212500_213000/212688/1/53d5afb6f9c4b17ce0964fecb0da62801df9e4f1/09_01_ST_10_bb.gif

Answer 8

so, do you know the formula for slope given two points?

Answer 9

no

Answer 10

ok, here it is: \[(y2-y1)/(x2-x1)\]

Answer 11

find the slope of your two points from it to start.

Answer 12

Ehh wrong. M = (y2-y1)/(x2-x1)

Answer 13

7-1/-4-5

Answer 14

that's what I put....

Answer 15

Nope you forgot the "m"

Answer 16

I figured it was assumed, considering I had put "the formula for slope from two given points" in the previous reply.

Answer 17

anyways just solve

Answer 18

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&({\color{red}{ 5}}\quad ,&{\color{blue}{ 1}})\quad &({\color{red}{-4}}\quad ,&{\color{blue}{ 7}})
\end{array}
\\\quad \\

slope = {\color{green}{ m}}= \cfrac{rise}{run} \implies \cfrac{{\color{blue}{ y_2}}-{\color{blue}{ y_1}}}{{\color{red}{ x_2}}-{\color{red}{ x_1}}}
\\ \quad \\

y-y_1={\color{green} m}(x-x_1)\qquad \textit{plug in your values and solve for "y"}\)