26.5k views
5 votes
Had to do it to em

Evaluate –3x + 2y when x = 4 and y = - 5.

possible answers:

a. –22
b. 3
c. –14
d. 2

User Ctc Chen
by
5.8k points

2 Answers

3 votes

Answer:

Explanation:

First you plug in the numbers 4 into x and -5 into y.

-3(4) + 2(-5)

-3(4) is -12, 2(-5) is -10

-12 - 10

the answer is a) -22

Hope this helped ! ;)

User Robert Altena
by
5.9k points
4 votes

Answer:

A is the correct answer

Explanation:

When x =4 and y =-5, and you want to evaluate equation -3x+2y, you just have to apply it into the equation.

We got the equation as:

= -3x + 2y

= -3*4 + 2*(-5)

= -12 + (-10)

= -12 - 10

= -22

Hope this help you :3

User DiegoRBaquero
by
5.5k points