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What is the solution to the following system of equations? y = −x2 − 5x − 4 y = −x2 + 9x − 18 a. (-1, -10) b. (1, -10) c. (-1, 10) d. (1, 10)
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Jun 20, 2017
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What is the solution to the following system of equations?
y = −x2 − 5x − 4
y = −x2 + 9x − 18
a. (-1, -10)
b. (1, -10)
c. (-1, 10)
d. (1, 10)
Mathematics
high-school
Mellowg
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Hello,
y=-x²-5x-4
y=-x²+9x-18
==>-x²-5x-4=-x²+9x-18
==>9x+5x=18-4
==>14x=14
==>x=1 ==>y=-1-5-4=-10 (y=-1+9-18=-10
Answer B
Pismy
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Jun 23, 2017
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