Bryan has a prepaid cell phone with a balance of $75. He is charged the same rate per minute. Which function represents the bala
1 answer:
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Answer:
The equation has a maximum value with a y-coordinate of -21.
Step-by-step explanation:
Given
Required
The true statement about the extreme value
First, write out the leading coefficient
means that the function would be a downward parabola;
Downward parabola always have their vertex on top of the parabola and as such, the function has a maximum value.
The maximum value is:
Where:
So, we have:
Substitute in
<em>Hence, the maximum is -21.</em>
You have known the formula Length of base is la division of Area and a haft of the height.
So we have 3
or
and
have fun
So we have 3
or
and
have fun