Question

The gran represents the costy (in dollars to open an online gaming account and buy x games. Find the slope and the v-intercept of the Ine.

Answer 1

To find the slope of the line we have to identify two coordinates in the line and use this equation:

$m=\frac{y_2-y_1}{x_2-x_1}$

So I use the coordiantes (0,15) and (3,45) so

$\begin{gathered} m=\frac{45-15}{3-0} \\ m=10 \end{gathered}$

and the y intercept is 15 so the general equation will be:

$y=10x+15$