Question

1. determine the slope of line ij.

Explanation:

Step1: Identify two points on line IJ

Point I is at $(-4,4)$ and point J is at $(4, - 4)$.

Step2: Use the slope - formula

The slope formula is $m=\frac{y_2 - y_1}{x_2 - x_1}$. Let $(x_1,y_1)=(-4,4)$ and $(x_2,y_2)=(4,-4)$. Then $m=\frac{-4 - 4}{4-(-4)}$.

Step3: Simplify the expression

$m=\frac{-8}{8}=-1$.

Answer:

$-1$