imath 1 ch 2

The graph shows your distance from the practice field as

you go home after practice. You received a ride from a

friend back to his house where you ate supper. You then

walked home from there. Which point represents a time

when you are walking home?

• a

• b

• c

• d

Which table is related to the graph?

• 
• 
• 
• 

How are the variables related on the graph?

• as speed decreases, height stay constant

• as speed decreases, height increases

• as speed increases, height decreases

• as speed increases, height increases

Which equation represents the relationship shown in the table

• y = –x – 3

• y = x – 3

• y = 2x – 3

• y = –2x + 3

A lawn care company charges a $10 trip fee plus $0.15 per square foot of x square feet of lawn for fertilization. Which equation represents the relationship?

• x = 0.10y + 15

• y = 0.15x + 10

• y = 10x + 0.15

• x = 10y + 0.15

Which equation represents the relationship shown in the graph?

• y = –2x

• y = 2x

• y =- x

• y= -1

Which ordered pair represents a nonlinear function?

• (0, 0), (1, 1), (2, 2), (3, 3), and (4, 4)

• (0, 0), (1, –1), (2, –2), and (4, –4)

• (0, 0), (1, 1), (2, 8), (3, 27), and (4, 64)

• (0, –1), (1, 0), (2, 1), (3, 2), and (4, 3)

The total cost (c) a painter charges to paint a house depends on the number of hours (h) it takes to paint the house.

This situation can be represented by the function rule

c = 15h + 245.

What is the total cost if the painter works for 30.25 hours?

• $245

• $453.75

• $572.75

• $698.75

Jill earns $45 per hour. Using p for her pay and h for the hours she works, what function rule represents the situation?

• h = 45p

• p = 45h

• h = p + 45

• p = h + 45

Which equation represents the sentence “d is 17 less than the quotient of n and 4”?

• 
  

  $d=\ -\frac{n}{4\ }-17$

• 
  $d=\ -\frac{n}{4\ }\ +\ 17$

• d = 4n-17

• $d-17\ =\ -\frac{n}{4}$