Pls explain ASAP Thanks
2 answers:
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Answer:
Step-by-step explanation:
-Solve for :
-Combine like terms:
-Add both sides by :
So, the value of is
.
Answer:
a = -1
Step-by-step explanation:
The line of symmetry for the parabola given by ...
y = ax² +bx +c
is
x = -b/(2a)
Using the given values, we have ...
-2 = -(-4)/(2a)
Multiplying by -a/2, we get ...
a = (4/2)(-1/2) = -1
The value of "a" is -1.
