Question

What is the rate of change for this set of ordered pairs?
http://www.thelearningodyssey.com/Assess/DPT/QIEImagesStorage/AQ13A/AQ13AI_A1712_17_stem2_1.gif

A. 2
B. 3
C. 4
D. –2

Answer 1

Do you know how to find slope?

Answer 2

no

Answer 3

\[Slope=y2-y1/x2/x1\]

Answer 4

what is the answer i cant do it

Answer 5

30-24/8-6=6/2=3/1 So B. 3 is the answer

Answer 6

rate of change = slope of the line

say for example.. let us pick the 1st two points
that is (0, 6)
and (2, 12)

so \(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&({\color{red}{ 0}}\quad ,&{\color{blue}{ 6}})\quad &({\color{red}{ 2}}\quad ,&{\color{blue}{ 12}})
\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}}}\)