Question

1. Shown in the xy-plane below is the graph of line m. Which of the following is the equation of line m? 0 2. 1- (A) y =x+1 (B) y = -x + 1 (C) y = x+1 (D y = -x +1

Answer 1

Find the slope, pick 2 points

(0,1) (3/2,0)

`\begin{gathered} m=(0-1)/((3)/(2)-0)=-(1)/((3)/(2))=-(2)/(3) \\ \end{gathered}`

Use the slope and the y intercept to find the equation of the line

`y=-(2)/(3)x+1`

The right answer is B