Question

Write an equation of the line passing through the points (1,10/21) and (3,8/7)

Answer 1

@madisonlove

Answer 2

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
&({\color{red}{ 1}}\quad ,&{\color{blue}{ \frac{10}{21}}})\quad &({\color{red}{ 3}}\quad ,&{\color{blue}{ \frac{8}{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-{\color{blue}{ y_1}}={\color{green}{ m}}(x-{\color{red}{ x_1}})\qquad \textit{plug in the values and solve for "y"}\\
\qquad \uparrow\\
\textit{point-slope form}\)

same as before

Answer 3

y=.9/2x+.2

Answer 4

It confuses me with the fractions

Answer 5

why is it .9/2+.2