Question

The range of y = - 32x ^ 2 + 90x + 3

Answer 1

y ≤ 66.28 -> -∞

Explanation:

y = a (x-h)² + k ... (h,k): vertex

y = - 32x² + 90x + 3

= -32 (x² - (90/32)x + (90/64)²) + (3 + (32)*(90/64)²)

= -32 (x² - 2*(90/64)x + (90/64)²) + (3+63.28) ... 90/64=1.41

= -32 (x - 1.41)² + 66.28

h = 1.41

k = 66.28 .... extremum of y value

y ≤ 66.28 (y is real number)

Answer 2

Enter a problem...

Algebra Examples

Popular Problems Algebra Find the Domain and Range y=3/2x^2+4x-9

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The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

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Domain:

(

−

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)

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Range:

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image of graph