Which ratios form a proportion?
4/10 and 10/25
3/5 and 9/25
4/9 and 9/4
4/11 and 6/13

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb