What test do you use to see if a relation is a function or not? * the horizontal line test
the vertical line test
the regression formula test
the exponential formula test

i believe

step-by-step explanation:

from my conclusion c

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

20 feet per second

hope i

-lavira : )