Name: ______Pd: ______
Unit 3a Test Review
The graph below represents the swimmers distance from the finish line.
1. From the graph, what is the y-intercept? ______
2. When would you expect the swimmer to finish
the race? ______
Explain your reasoning. ______
______
3. What is the slope of the graph? ______
Use the graph below to answer questions 4 and 5.
4. Using the points on the graph, what is the
x-intercept?
5. Using the points on the graph, what is the
y-intercept?
6. The points and are on the same line with a slope of What is the value of h?
For each graph: Identify the type of slope, find the slope, find the intercepts & write the equation of the line in slope-intercept form.
Use the graph to the right to answer each question below.
11. What is the slope of the graph? _____
12. What is the y-intercept from the graph? _____
13. Write the equation for the graphed line in slope-intercept form.
14. What is the approximate zero(x-intercept) of the linear function?
A. 4 B. -4 C. 4.8D. 5.4
Graph the following equations.
15. 16.
m = ____ , b = ____ m = ____, b = _____
17. 18.
m = ____ , b = ____ m = ____, b = _____
19. Find the slope & intercepts from the table.
x / Y6 / 0
3 / -2
0 / -4
-3 / -6
slope: ______
x-intercept: ______
y-intercept: ______
20. Audra is climbing a mountain at a constant rate. Her heights at various times are given in the table. Which of the following represents the rate at which she is climbing?
Time / Height (ft. above sea level)1:13 PM / 5211
1:33 PM / 5651
1:48 PM / 5981
A40 feet per minute
B30 feet per minute
C25 feet per minute
D22 feet per minute
21. A music service charges a monthly fee plus a fixed amount for each download. One month, Rhonda downloads 12 songs and pays $15.67. The next month, Rhonda downloads 15 songs and pays $18.34. At what rate does her bill change with respect to the number of downloads?
- 0.89B 1.22
C. 1.31D 4.99
22. A building is 450 feet tall and 95 feet wide. If a scale model of the building is 12 inches tall, what is the approximate width of the scale drawing?
- 2.2 inches B. 2.5 inches
C. 3.1 inches D. 3.7 inches
23. The force required to stretch a spring, F, varies directly with the amount the spring is stretched, s. If 16 pounds of force is needed to stretch a spring 10 centimeters, how many pounds of force are needed to stretch a spring 35 centimeters?
24. The graph below represents the amount of gasoline left in the tank of Leah’s Toyota Camry. Calculate the slope of the graph and explain its meaning.
25. At Games4U you can rent discounted video games for a week. The graph below depicts the discounted rental cost if you purchase their one time membership fee. What is the meaning of the y-intercept?
26. Which graph below shows a slope of ?
27. Marie is training for her first marathon. In order see her progress, she decides to record her speed along the first mile of today’s 5 mile workout. The table below describes her speed.
Distance / Time (seconds)¼ mile / 150
½ mile / 300
¾ mile / 450
If Marie continues at this pace for the entire workout, how long will it take her to complete the five mile run?
28. The points and are on the same line with a slope of What is the value of p?