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Laabri

Unit 6 Test A: Radical Functions

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Last updated over 3 years ago
17 Nsɛmmisa
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1.

Find the perimeter of the triangle below. Write your answer in simplest radical form.

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2.

Simplify the expression below.

\sqrt{18}{(2+\sqrt6})-2\sqrt{3}

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3.

Simplify the expression:

\frac{\sqrt{294k^{30}}}{\sqrt{3k^5}}

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4.

Which is equivalent to the expression below:

a^\frac{5}{4}b^\frac{13}{4}

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5.

Simplify the expression. Write the answer as a radical

\frac{8^\frac{7}{3}}{8^\frac{5}{3}}

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6.

Solve the equation:

7-(3k-29)^\frac{1}{4}=5

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7.

Solve the equation:

(7-3c)^{\frac{1}{2}}=(1-5c)^\frac{1}{2}

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8.

OPTIONAL: Solve for y:

\sqrt{6y+15}-4=y

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9.

The square root parent function is translated so that the endpoint is located at (-4,1). Write an equation that represents this new function.

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10.

What transformations take place by graphig the function below with respect to it's parent functions? Check all that apply.

f(x)=-3\sqrt{x-5}-4

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11.

Graph the function AND identify it's key characterisics.

f(x)=-\frac{1}{2}\sqrt{x}-3

Domain: {x|x } - use >= for 'greater than and equal to'

Range: {y|y }

End Behaviour: As x\rightarrow , f(x)\rightarrow use the word 'infinity'

As x\rightarrow, f(x)\rightarrow

Increasing Interval:

Decreasing Interval:

Endpoint:

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12.

Which of the following relations represent a one-to-one function? Check all that apply:

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13.

Find the inverse function.

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14.

Find the inverse functon.

ANSWER:

f^{-1}x=

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15.

Determine if the functions below are inverse functions. Prove your answer algebraically.

f(x)=\frac{1}{3}x-3 and g(x)=6x+18

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16.

OPTIONAL: Determine if the functions below are inverse functions. Prove your answer algebraically.

f(x)=\sqrt{x}+3 and g(x)=x^{2}-6x+9 if (x\geq{3})

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17.

OPTIONAL: Solve the equation

\sqrt[3]{8x^{3}-1}+1=2x