Which rules define the function graphed below? 5
4.
(0.3)
3
(3.2)
-3
-1
1 2 3 4 5 6 7
2
-3
y = 2x+3; y=-1/3x + 3
y = 2x, y=-1/3x
y=3x+2; y=3x-1
y=-3x+3; y=x+3

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it