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Popular >

y=2x^2+8x-7

Solution

y = 2 x^{2} + 8 x - 7

Solution

Domain : - \infty < x < \infty

Range : f (x) \geq - 15

X Intercepts : (\frac{- 4 + 30}{2}, 0), (- \frac{4 + 30}{2}, 0), Y Intercepts : (0, - 7)

Vertex : Minimum (- 2, - 15)

Inverse : \frac{- 8 + 8 x + 120}{4}, \frac{- 8 - 8 x + 120}{4}

+1

Interval Notation

Domain : (- \infty, \infty)

Range : [- 15, \infty)

Solution steps

Domain of

2 x^{2} + 8 x - 7 : - \infty < x < \infty

Range of

2 x^{2} + 8 x - 7 : f (x) \geq - 15

Axis interception points of

2 x^{2} + 8 x - 7 :

X Intercepts

: (\frac{- 4 + 30}{2}, 0), (- \frac{4 + 30}{2}, 0),

Y Intercepts

: (0, - 7)

Vertex of

2 x^{2} + 8 x - 7 :

Minimum

(- 2, - 15)

Inverse of

2 x^{2} + 8 x - 7 : \frac{- 8 + 8 x + 120}{4}, \frac{- 8 - 8 x + 120}{4}

Popular Examples

y = 2 x^{2} + 8 x + 2

f(x)=7+6x-2x^2+x^3

f (x) = 7 + 6 x - 2 x^{2} + x^{3}

h (- 3) = x^{2} - 3 x + 5

f (b) = \frac{b}{3}

y = 2 arcsec (9 - x)

Frequently Asked Questions (FAQ)

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