Question

Use the graph to find the slope and y-intercept of the line. Compare the values to the equation y= -3x+ 1

Answer 1

The y-intercept is at the point where the line cut the y-axis.

Hence, the y-intercept is 1

`\begin{gathered} \text{Slope}=(y_2-y_1)/(x_2-x_1) \\ m=(3-0)/(-1-0) \\ m=(3)/(-1)=-3 \end{gathered}`

Hence, the slope is -3

Comparing the values to the equation y = =-3x +1, the equation is valid for the line.