Evaluating Function Notation (ALG I)

Evaluating Function Notation (ALG I)

9th - 12th Grade

9 Qs

quiz-placeholder

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Evaluating Function Notation (ALG I)

Evaluating Function Notation (ALG I)

Assessment

Quiz

Mathematics

9th - 12th Grade

Practice Problem

Medium

Created by

Charli Harbin

Used 3+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

How should you read/say "f(x)" ?

"f x"

"f of x"

"f times x"

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

TRUE or FALSE?

The letter f in "f(x)" is another variable in the equation.

True, it means "f times x"

False, it stands for the word "function" as in "function of x"

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Given f(x) = 8x - 12, find f(-3).

f(-3) = -36

f(-3) = 12

f(-3) = -12

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Given f(x) = 13 - 7x, find f(-3).

f(-3) = 62

f(-3) = -8

f(-3) = 34

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Given f(x) = x2 - 5, find f(-3).

f(-3) = -14

f(-3) = 4

f(-3) = -8

Answer explanation

Be careful on the calculator!

If you type -32 - 5, you will get the answer wrong!

Not putting a negative base inside of ( ) before plugging in the exponent means that the exponent will only apply to the number and not the negative sign.

It SHOULD be (-3)2 - 5, or use "y=" and type in x2 - 5 and go to the TABLE.

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Given f(x) = x2 - 10x + 21, find f(-3).

f(-3) = 60

f(-3) = 20

f(-3) = -8

Answer explanation

Be careful on the calculator!

Not putting a negative base inside of ( ) before plugging in the exponent means that the exponent will only apply to the number and not the negative sign.

I highly recommend that you use "y=" and type in the given equation, and then go to the TABLE.

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Given f(x) = x2 - 10x + 21, find f(-3).

f(-3) = 60

f(-3) = 20

f(-3) = -8

Answer explanation

Be careful on the calculator!

I highly recommend you use "y=" and type in the equation into the calculator, then go to the TABLE.

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