Question

What are the values of x and y in the matrix equation below?

X+4
y^2+1
+
-9x
-17
=
28
0

Answer 1

D, -3, 4

Explanation:

EDGE 2020

Answer 2

4.) x=-3 and y=4

Explanation:

[x+4] + [-9x] = [28]

First plug in x into the equation

[-3+4] + [-9(-3)] = [28]

[1] + [27] = [28]

1+27=28 (True)

Next, plug in y into the equation

[y^2+1] + [-17] = [0]

[(4)(4)+1] + [-17] = [0]

[16+1] + [-17] = [0]

[17] + [-17] =[0]

17 + -17=0 (True)

The Answer is D- X = -3 and Y= 4