Linear Functions and Equations

Question 1

Superman flies with a speed given by the equation v=500t+50. Which is the dependent variable?

Accepted Answer

v

Question 2

What is the constant rate of change for this linear function?

Accepted Answer

1

Question 3

In June, 8 in. of rain fall. For the rest of the year, 4 in. fall each month. Is this linear?

Accepted Answer

No!

Question 4

John starts at 150 lbs. and gains 15 every year. What is the equation for his weight?

Accepted Answer

y=150+15x

Question 5

Which of these equations has a negative rate of change and a positive initial value?

Accepted Answer

N=500 - 5t

Question 6

This is a linear function. What equation goes with this table?

Accepted Answer

y=3x+2

Question 7

The equation of a linear function is y=mx+b. What does the b represent?

Accepted Answer

Initial value

Question 8

Clara sells cookies for $4 a box. The equation is c=4b. Which is the independent variable?

Accepted Answer

b

Question 9

In the equation C=68+28t, what is the constant rate of change?

Accepted Answer

28

Question 10

Is this the graph of a linear function?

Accepted Answer

Yes!

Question 11

Is this the graph of a linear function?

Accepted Answer

No!

Question 12

Which of these tables is a linear function?

Accepted Answer

Table #3

Question 13

John is shrinking. He starts at 70 in. and gets smaller by 5 in, each second. Is this linear?

Accepted Answer

Yes!

Question 14

I have $300 and earn $50 each week. Write an equation for the amount of money I have in all.

Accepted Answer

M=300+50t

Question 15

Is this table a linear function?

Accepted Answer

Yes!

Question 16

Does this table represent a linear function?

Accepted Answer

No!

Questions 16