Page 513 - Algebra 1

*13.
(74)
*14.
(74)
15.
(73)
16.
(73)
17.
(73)
18.
(72)
19.
(73)
20.
(71)
Multi-Step Given the equation ⎢x + 2 + 6 = 17, answer the questions below. a. Isolate the absolute value expression.
b. Use the definition of absolute value to rewrite the absolute-value equation as two equations.
c. What is the solution set?
Physics A steel bar at a temperature of 300°C has the length L. If the temperature of the bar is raised or lowered 100°C, its length will increase or decrease by 0.12%, respectively. Write an absolute-value equation for the maximum and minimum lengths of the bar when it is heated to 400°C or cooled to 200°C.
Solve the compound inequality -14 ≤ -3x + 10 ≤ -5.
Error Analysis Two students graph the compound inequality -2 < x < 1 as shown.
Which student is correct? Explain the error.
Temperature The predicted high temperature for the day is 88°F and the predicted low temperature for the day is 65°F. Write a compound inequality that shows the range of temperatures predicted for the day.
Multiple Choice Which binomial is a factor of x2 + 5x - 6?
A x+1 B x+2 C x+3 D x+6
Verify Show that 2 is a solution of the compound inequality x < 3 OR x > 6. Use the scatter plot and the trend line to write an equation of the line.
16 12
Measurement Tyrone bought 24 quarts of juice for a party. He plans to serve the juice in _1 -quart cups. How many servings can he plan to make with the juice he
Fitness To make the swim team, Maria needs to swim 10 laps in under 8 minutes. Write and solve an inequality to find the maximum average time per lap she could swim to still make the team.
Suppose Carrie walks home from school at a rate of 4 miles per hour. Write an equation that relates Carrie’s time to the distance traveled home. Is this a direct or indirect variation? What represents the constant of variation?
3 4
21.
(70)
22.
(70)
23.
(Inv 7)
4
has available?
498
Saxon Algebra 1
Student A
-4 -2 0 2 4
Student B
y
-4 -2 0 2 4
8
4
x
4
8
12
16