7th Grade Math

Mid-Chapter Check 401

Mid-Chapter

Check

1. TRAVEL Beth drove at an average rate of
   65 miles per hour for several hours. Make
   a function table that shows her distance
   traveled after 2, 3, 4, and 5 hours. Then
   identify the domain and range. (Lesson 1B)


2. MONEY Anthony earns extra money after
   school doing yard work for his neighbors.
   He charges $12 for each lawn he mows.
   (Lesson 1B)
   a. Write an equation to show the
   relationship between the number of
   lawns mowed m and number of dollars
   earned d.
   b. Find the number of dollars earned if he
   mows 14 lawns.

Graph each equation. (Lesson 1C)

3. y = x + 1


4. y = 2 x


5. y = 2 x - 3


6. y = - x + 1


7. MOVIES A student ticket to the movies
   costs $6. The equation c = 6 t describes the
   total cost c for t tickets. Make a function
   table that shows the total cost for 1, 2, 3,
   and 4 tickets, and then graph the equation.
   (Lesson 1C)


8. MAGAZINES Use the graph to find the
   constant rate of change in cost per
   magazine. (Lesson 2B)

Cost ($)

15

20

10

5

0 12345

Number of Magazines

(3, 12)

(2, 8)

(1, 4)

(4, 16)

Cost of Magazines

9. MULTIPLE CHOICE

Water Level (ft)

3

4

5

6

2

1

0 123456

Time (h)

Water Level of a Pool

The graph shows

the relationship

between time

and water level

of a pool. Which

represents the

rate of change?

(Lesson 2B)

A. increases 2 feet every 1 hour

B. increases 1 foot every 2 hours

C. increases 1 foot every 1 hour

D. increases 2 feet every 2 hours

10. MAPS The table shows the key for a map.
    Graph the data. Then find the slope of the
    line. (Lesson 2C)

Distance on Map (cm) 1234

Actual Distance (km) 20 40 60 80

11. MULTIPLE CHOICE Line AB represents a
    ramp for loading a truck. What is the slope
    of the ramp? (Lesson 2C)

4

2

1

3

5

7

9

0

6

8

1823465 7 9 x

y

#

"

F. _^2

1

H. - _^2

1

G. _^1

2

I. - _^1

2

401_401_C07_MCC_895130.indd 401 12/31/09 4:27 PM