Y=ax² + bx + c and A(-2,18), B(0.4), C(4,24) given
1)Let's determine 1st the value of c in using the pair of B
4= a(0)² + b(0) + c , c=4 and y=ax²+bx+4
2) Use the pair of A: 18 = 4a -2b + 4===> 4a-2b=14
3) Use C pair: 24 = 16a+4b+4 ==> 16a+4b=20
4) solve the system equation in 2) and 3) and you'll find a=2 and b=-3
Hence the equation is y =2x²-3x+4
X= your age
400-2x=244
-2x=-156
x=78
you are 78 years old
Answer:
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
I did math
Answer:You’re answer would have to be B) 41+28=69
Because 69-28=41 and 41+ 28 = 69