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All about Functions

Authored by Julianne Huang

Mathematics

9th - 12th Grade

Used 4+ times

All about Functions
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51 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

A student solved this problem. Which, if any, describe the mistake(s) made?

He distributed incorrectly on step 1. 6(x + 2) = 6x + 8

He added 3x twice to the left side and added nothing to the right side. He made the scale unbalanced.

On step 4, he should have added 12 to get rid of an added 12.

There are no mistakes

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

A student solved this problem. What mistakes, if any, were made?

On step 1, he added 4 to both sides. You cannot add the same number to both sides of an equation.

On step 2, he moved the = sign. He should have 5m + 10 = 0 instead of 5m = 10.

On step 3, he divided both sides by 5. He should have divided both sides by 5.

There are no mistakes.

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

A student solved this problem. Find any mistakes if there are any.

On step 2, the student eliminated the m's when they don't eliminate. -2m - 2m does not equal 0.

On step 3, the student added 1 to get rid of the subtracted 1. He should have subtracted 1.

On step 4, the student added 6 and 1 incorrectly.

There are no mistakes in this problem.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the first step in solving this equation:
5x + 7 = 12

Divide by 5
Subtract 5
Multiply by 7
Subtract 7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The objective when solving an equation is to....

isolate the variable.
check the solution.
guess and check.
Combine Like Terms.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What operation would you perform first and then second when solving for m in the following equation?
10 + 7m = 17

subtract 10, divide by 7
divide by 7, subtract 10
multiply by 7, add 10
add 10, multiply by 7

7.

MATH RESPONSE QUESTION

5 mins • 1 pt

Sophie has $14 and plans to save $5 each week until she has the $64 she needs for a new jacket.  How many weeks will it take Sophie to save money for a new jacket?

Type just the #

Mathematical Equivalence

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