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Vesnalui [34]
3 years ago
10

ike's Bikes has mountain bikes that usually sell for $275 on sale for $220. Mike used this ratio to find the percent change. Is

he correct? Explain.
Mathematics
2 answers:
Flura [38]3 years ago
8 0

Answer:

No. Mike wrote the ratio as the amount of change to the new amount. He should have used the ratio of the amount of change to the original amount, which is 55

55/275

, or 20%.

cricket20 [7]3 years ago
6 0

Answer:

No. Mike wrote the ratio as the amount of change to the new amount. He should have used the ratio of the amount of change to the original amount, which is 55/275, or 20%.

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Answer:

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Step-by-step explanation:

The equation of a quadratic function in vertex form is given by:

f(x)=a(x-h)^2+k

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It was given in the question that the vertex of the parabola is (-1,4).

When we substitute the vertex into the formula we get:

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We divide both sides by 25 to get:

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Hence the quadratic function is:

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