Question

Complete the equation for the linear function whose graph contains the points
(9, 7) and (4, –8).

y − = (x − 9)

Answer 1

@Directrix

Answer 2

ok do u know d point slope formula?

Answer 3

no

Answer 4

\[(y-y1)=m(x-x1)\]

Answer 5

ok

Answer 6

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&({\color{red}{ 9}}\quad ,&{\color{blue}{ 7}})\quad &({\color{red}{ 4}}\quad ,&{\color{blue}{ -8}})
\end{array}
\\\quad \\
% slope = m
slope = {\color{green}{ m}}= \cfrac{rise}{run} \implies \cfrac{{\color{blue}{ y_2}}-{\color{blue}{ y_1}}}{{\color{red}{ x_2}}-{\color{red}{ x_1}}}
\\ \quad \\
% point-slope intercept
y-{\color{blue}{ y_1}}={\color{green}{ m}}(x-{\color{red}{ x_1}})\qquad \textit{plug in the values}\\
\qquad \uparrow\\
\textit{point-slope form}\)

Answer 7

i got 1/5

Answer 8

your y1 is 7 and your x1 is already given as 9

Answer 9

all u need is look for d slope

Answer 10

got slope?

Answer 11

no

Answer 12

can i has it pleaseeeeeee

Answer 13

well.. that's the idea of the exercise, that you find it

Answer 14

so \(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&({\color{red}{ 9}}\quad ,&{\color{blue}{ 7}})\quad &({\color{red}{ 4}}\quad ,&{\color{blue}{ -8}})
\end{array}
\\\quad \\
% slope = m
slope = {\color{green}{ m}}= \cfrac{rise}{run} \implies \cfrac{{\color{blue}{ y_2}}-{\color{blue}{ y_1}}}{{\color{red}{ x_2}}-{\color{red}{ x_1}}}
\\ \quad \\
% point-slope intercept
y-{\color{blue}{ y_1}}={\color{green}{ m}}(x-{\color{red}{ x_1}})\qquad \textit{plug in the values}\\
\qquad \uparrow\\
\textit{point-slope form}\)

so..... what would that give you for "m" or the slope?

Answer 15

2/15

Answer 16

so simplify it for answer

Answer 17

ok what is ur y2 and y1?

Answer 18

-8 is my y2 my y1 is 7

Answer 19

ok subtract dem

Answer 20

i did i got -15

Answer 21

ok

Answer 22

what is ux2 and x1

Answer 23

sorry r x2

Answer 24

whatever u get subtract dem

Answer 25

k

Answer 26

-17

Answer 27

now divide -15/-17

Answer 28

i cant get the answer