Which of the following is a parametric equation?

y = 3t + 2

Step-by-step explanation:

A parametric equation defines a group of quantities as functions of one or more independent variables called parameters.

y = 3t + 2 is the answer because you usually use the variable t when y equals something but if you use x = y - 9 it can't be because it needs to be another variable.

use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)

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step-by-step explanation:

probability for j is 1/4

while

a is 1/6