Question

What is the slope of the line containing the points (2,5) and (-3,5)?

1. -5
2. 5
3. undefined
4. 0

Answer 1

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&({\color{red}{ 2}}\quad ,&{\color{blue}{ 5}})\quad &({\color{red}{ -3}}\quad ,&{\color{blue}{ 5}})
\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}}}\)

Answer 2

Did you use the formula (x1,y1) (x2, y2)

Answer 3

Use that formula^

Answer 4

Y = -2x -1

Answer 5

(x1, y1) = (2, 5) and (x2, y2)= (-3, 5)

Answer 6

I got -1.3?

Answer 7

How did you get that?

Answer 8

@jdoe0001

Answer 9

@iGreen

Answer 10

Don't know

Answer 11

Hmm

Answer 12

so... what did you get for the slope?

Answer 13

If you don't know how to solve slopes then you should go here for future help. http://www.ehow.com/how_2362821_find-slopes.html

Answer 14

\(m = \dfrac{y_2-y_1}{x_2-x_1}\)

This is the slope formula.

In this case:

\(y_2 = 5\)
\(y_1 = 5\)

\(x_2 = -3\)
\(x_1 = 2\)

Plug them in:

\(m = \dfrac{5-5}{-3-2}\)

5 - 5 cancels out leaving you with -3 - 2, and what's that? @Daniella33

Answer 15

What's -3 - 2? @Daniella33

Answer 16

Do you have a graphing calculator, Daniella?