Polynomials
Function Inverses
Factor
Solve by Factoring
Formulas
100

(4x+3) + (10x2-4)

or

(-10x2-10)+(9x2+4x)

10x+ 4x - 1

or

-x2+4x+10

100

For the function f(x) = 6(x+1), find f-1(x).

OR

For the function f(x) = 5(x-5), find f-1(x). 

f-1(x) = x/6 - 1


 f-1(x) = x/5 +5

100

9y5z - 18x4y

OR

2x2 + 17x + 21

9y(y4z-2x4)

OR

(2x+3)(x+7)

100

5x2 - 11x + 12 = 6

x = 6/5 and x = 1

100

Standard Form

f(x) = ax2 + bx + c

200

(7x-10) - (9x2-5x+10)

or 

(3x+9)-(5x2-7x)

9x+ 12x - 20

or 

-5x2 +10x +9

200

For the function f(x) = (x-10)1/3, find f-1(x).

OR

For the function f(x) = (x-7)/7, find f-1(x). 

f-1(x) = x+ 10


f-1(x) = 7x+7

200

15x2 - 50x - x3

OR

3x2 + 16x + 16

-x(x-10)(x-5)

OR

(3x+4)(x+4)

200

3x2 - 15x - 8 = -10x

x = -1 and x = 8/3

200

Intercept Form (Factored Form)

f(x) = a(x±α)(x±β)

300

(3x-7)(2x-3)

or

(4x+12)(8x-2)

6x- 23x + 21

or

32x+ 88x - 24

300

For the function f(x) = 2(x-3)1/7, find f-1(x).

OR

For the function f(x) = ( (x-5) / 7 )1/5, find f-1(x).

f-1(x) = (x/2)+ 3


f-1(x) = 7x5 +5

300

3x3 - 24x2 + 45x

OR

x2 - 11x + 18

3x(x-3)(x-5)

OR

(x-2)(x-9)

300

x2 - 18x - 16 = -9x - 6

x = 10 and x = -1

300

Vertex Form

f(x) = a(x-h)2 + k
400

(2x-1)(-2x2+4x+5)

or

(3x+5)(-3x2+x+3)

-4x+ 10x+ 6x - 5

or

-9x- 12x+ 14x + 15

400

For the function f(x) = (3x-5)/2x , find f-1(x).

OR

For the function f(x) = 9(x+2)1/7 , find f-1(x).

f-1(x) = -5/(2x-3)


f-1(x) = (x/9)7-2

400

x4 - 5x2 + 4

OR

x2y4 + x3y5

(x-2)(x+2)(x-1)(x+1)

OR

x2y4(1+xy)

400

x2 - 15x + 28 = -2x - 2

x = 10 and x = 3

400

Absolute Value Formula

f(x) = a|x-h| + k

500

2(x-2)2+2(x-2)+5

or

(X-4)2+3(x-4)+6

2x- 6x + 9

or

x- 5x + 10

500

Find the inverse function f(x) = (5x)2/5 on the domain x≥0.

OR

Find the inverse function f(x) = 2x2/3 on the domain x≥0.

f-1(x) =


f-1(x) =

500

12x3 - 35x - x5

OR

35x2 + 63x4

-x(x2-7)(x2-5)

OR

7x2(5+9x2)

500

x2 - 22 = 5x + 2

x = 8 and x = -3

500

Quadratic Formula

(-b±√(b²-4ac))/(2a)

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