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Katyanochek1 [597]
3 years ago
14

A pair of equations is shown below.

Mathematics
1 answer:
Zolol [24]3 years ago
4 0
I'll solve it by substitution instead of graphing.

x + y = 2
y = (1/2)x + 5

Substitute equation 2 into equation 1.

x + (1/2)x + 5= 2

(3/2)x + 5 = 2

(3/2)x + 5 - 5 = 2 - 5

(3/2)x = -3

(2/3) * (3/2)x = -3 * (2/3)

x = -2

x + y = 2
-2 + y = 2
y - 2 = 2
y - 2 + 2 = 2 + 2
y = 4

x = -2
y = 4

(-2,4)

Your answer is B) (-2,4).
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D. 0.665

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Interior angle = <span>160°

</span>Hope this explains it.    
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