Question

I need some help, will medal and fan!

Answer 1

i can help

Answer 2

to find out the average of how many hours don reads, you need to look at his reading log. in 6 hours he read 108 pages which means he read 8 pages per hour ( 108/ 6)

jacob reads 147 pages in 7 hours, so divide 147 by 7. thats 21 pages per hour

jacob reads faster

Answer 3

take don's 108 pages and divide it by 6 hours to get 18 pages/hr. and take jacob's 42 pages and divide it by 2 hours to get 21 pages/hr. therefore jacob reads faster.

Answer 4

get the slopes for each set of values/coordinates
keep in mind that slope = rate of change

\(\bf \begin{array}{ccllll}
&jacob's\ log
\\\hline\\
x&y\\
\hline\\
{\color{red}{ 2}}&{\color{blue}{ 42}}\\
3.5&73.5\\
{\color{red}{ 5}}&{\color{blue}{ 105}}\\
7&147
\end{array}
\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&({\color{red}{ 2}}\quad ,&{\color{blue}{ 42}})\quad &({\color{red}{ 5}}\quad ,&{\color{blue}{ 105}})
\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}}}\impliedby reading\ rate\)

do the same for Don