The function y= -6(x - 5)2 + 12 shows the daily profit (in hundreds of dollars) of a taco food truck, where x is the price of a taco (in dollars). Find and interpret the zeros of this function. Select two answers: one for the zeros and one for the interpretation. O A. Interpretation: The zeros are where the price of a taco is $0.00. B. Zeros: * = 5 – /2 - 3.58 and x = 5+2=6.41 I c. Zeros: x= 5 and x = -5 O D. Interpretation: The zeros are where the daily profit is $0.00
Business · Middle School · Thu Feb 04 2021
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To find the zeros of the function y = -6(x - 5)² + 12, we need to set y equal to zero and solve for x:
0 = -6(x - 5)² + 12
Firstly, move the 12 to the other side:
-6(x - 5)² = -12
Now divide by -6:
(x - 5)² = 2
Next, take the square root of both sides to solve for x:
√(x - 5)² = ±√2
x - 5 = ±√2
Now solve for x by adding 5 to both sides:
x = 5 ± √2
Therefore, the zeros of the function are:
x = 5 + √2 x = 5 - √2
And the approximate values for the zeros are:
x ≈ 5 + 1.41 = 6.41 x ≈ 5 - 1.41 = 3.59
Hence the correct choice for the zeros is:
B. Zeros: x = 5 - √2 ≈ 3.59 and x = 5 + √2 ≈ 6.41
For the interpretation part, zeros of the function represent the values of x for which the daily profit (y) is zero. Since y represents the profit in hundreds of dollars, the correct interpretation is that the zeros are the prices at which the profit will be $0.00. Hence, the answer is:
D. Interpretation: The zeros are where the daily profit is $0.00