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Popular >

f(n)=20n^2-9n-20

Solution

f (n) = 20 n^{2} - 9 n - 20

Solution

Domain : - \infty < n < \infty

Range : f (x) \geq - \frac{1681}{80}

X Intercepts : (\frac{5}{4}, 0), (- \frac{4}{5}, 0), Y Intercepts : (0, - 20)

Inverse : \frac{9 + 80 n + 1681}{40}, \frac{9 - 80 n + 1681}{40}

+1

Interval Notation

Domain : (- \infty, \infty)

Solution steps

Domain of

20 n^{2} - 9 n - 20 : - \infty < n < \infty

Range of

20 n^{2} - 9 n - 20 : f (x) \geq - \frac{1681}{80}

Axis interception points of

20 n^{2} - 9 n - 20 :

X Intercepts

: (\frac{5}{4}, 0), (- \frac{4}{5}, 0),

Y Intercepts

: (0, - 20)

Inverse of

20 n^{2} - 9 n - 20 : \frac{9 + 80 n + 1681}{40}, \frac{9 - 80 n + 1681}{40}

Graph

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y = 2 x^{2} - 11 x + 12

f (x) = 2 x^{3} + 2 x

Frequently Asked Questions (FAQ)

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