Download Vocabulary Number Patterns Evaluate Expressions Graph Linear

Vocabulary
Choose the best term from the list to complete each sentence.
linear equation
1. An equation whose solutions fall on a line on a
coordinate plane is called a(n) __?__.
point-slope
form
2. When the equation of a line is written in the form
y 5 mx 1 b, m represents the __?__ and b represents
the __?__.
slope
x-intercept
3. To write an equation of the line that passes through
(1, 3) and has slope 2, you might use the __?__ of the
equation of a line.
y-intercept
Complete these exercises to review skills you will need for this chapter.
Number Patterns
Find the next three numbers. Then describe the pattern.
1
3
5
} , } } , }} , . . .
4. }
23 24 25
5. 2, 3, 6, 11, 18, . . .
6. 211, 28, 25, . . .
7. 4, 2}2}, 1, . . .
1
Evaluate Expressions
Evaluate each expression for the given values of the variables.
8. a 1 (b 2 1)c
for a 5 6, b 5 3, c 5 24
9. a ? bc
for a 5 22, b 5 4, c 5 2
10. (ab)c
for a 5 3, b 5 22, c 5 2
11. 2(a 1 b) 1 c for a 5 21, b 5 24, c 5 210
Graph Linear Equations
Use the slope and the y-intercept to graph each line.
2
1
12. y 5 }3}x 1 4
13. y 5 2}2}x 2 2
14. y 5 3x 1 1
15. 2y 5 3x 2 8
16. 3y 1 2x 5 6
17. x 2 5y 5 5
Simplify Ratios
Write each ratio in simplest form.
3
18. }9}
21
19. }5}
212
20. }4}
27
21. }45}
3
}
22. }
245
20
}
23. }
28