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Open Up - Grade 8 - Mathematics - Unit 5 - Lesson 2

Last updated 11 months ago

7 questions

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Question 1

1.

Here are several function rules. Calculate the output for each rule when you use -6 as the input.

Question 2

2.

A group of students is timed while sprinting 100 meters. Each student’s speed can be found by dividing
100 m by their time.

Is this statement true or false?

Speed is a function of time.

True

False

Question 3

3.

A group of students is timed while sprinting 100 meters. Each student’s speed can be found by dividing
100 m by their time.

Is this statement true or false?

Time is a function of distance.

True

False

Question 4

4.

A group of students is timed while sprinting 100 meters. Each student’s speed can be found by dividing
100 m by their time.

Is this statement true or false?

Speed is a function of number of students racing.

True

False

Question 5

5.

A group of students is timed while sprinting 100 meters. Each student’s speed can be found by dividing
100 m by their time.

Is this statement true or false?

Time is a function of speed.

True

False

Question 6

6.

Diego’s history teacher writes a test for the class with 26 questions. The test is worth 123 points and has two types of questions: multiple choice worth 3 points each, and essays worth 8 points each.

How many essay questions are on the test?

Question 7

7.

These tables correspond to inputs and outputs.
Which of these input and output tables could represent a function rule, and which ones could not?

Table A.

Table B.

Table C.

Table D.

"Source: Open Up Resouces (Download for free at openupresources.org.)"