Question
In a football match, the equation of the kick is recorded as 
.
How much height did the ball go after the kick?
- 2
- 10
- 22
- 30
Hint:
In algebra, a quadratic equation is any equation that can be rearranged in standard form as where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0.
The correct answer is: 22
Determining the Maximum Value of the Quadratic Equation
For instance, it can be stated that if the equation has been represented in the form of ax2 +bx+c, the formula for finding the maximum value will be max= c- (b2/4a).
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