3 years ago

I need help on this problem. Solve for c

2 answers:

8 0

First you need to multiply each side by 2

X - C. X - C = d * 2
-------- = d --->
2
Then add X from each side

C = d * 2 + X

Katen [24]3 years ago

3 0

Remember, you can do anything to an equation as long as you do it to both sides

$\frac{x-c}{2}=d$
multiply both sides by 2
x-c=2d
minus x from both sides
-c=2d-x
multiplly both sides by -1
c=x-2d

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Marysya12 [62]

The function has a maximum at (1, 3).

_____
You know it is not a minimum because the coefficient of the squared term is negative.

You know the vertex is (1, 3) because you match the pattern to
.. y = a(x -h)^2 +k
which has its vertex at (h, k).