prerequisite skills vocabulary check copy and complete the statement. 2. two lines in the same plane...
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Prerequisite Skills VOCABULARY CHECK
Copy and complete the statement.
2. Two lines in the same plane are if they do not intersect.
?
?The least common multiple of 10 and 15 is .1.
30ANSWER
parallelANSWER
3. x – y = 4
Prerequisite Skills SKILL CHECK
Graph the equation.
4. 6x – y = –1
Prerequisite Skills SKILL CHECK
Graph the equation.
6. 3x – 2y = –12
5. 4x + 5y = 20
7. 5m + 4 – m = 20
Prerequisite Skills SKILL CHECK
Solve the equation.
8. 10(z +5) + z = 6
4ANSWER
–4ANSWER
9. y = 2x –3, y + 2x = –3
Prerequisite Skills SKILL CHECK
Tell whether the graphs of the two equations are parallel lines. Explain your reasoning.
10. y – 5x = –1, y – 5x = 1
Not parallel; the slope of the graph of the first equation is 2, while the slope of the graph of the second equation is 2.
ANSWER
Parallel; the 2 lines have a slope of 5, but different y-intercepts.
ANSWER
Prerequisite Skills SKILL CHECK
Tell whether the graphs of the two equations are parallel lines. Explain your reasoning.
11. y = x + 10, x – y = –9
12. 6x – y = 4, 4x – y = 6
Parallel; the 2 lines have a slope of 1, but different y-intercepts.
ANSWER
Not parallel; the slope of the graph of the first equation is 6, while the slope of the graph of the second equation is 4.
ANSWER
Prerequisite Skills SKILL CHECK
Graph the inequality.
14. x – y < 5
13. y –2x + 1
Prerequisite Skills SKILL CHECK
Graph the inequality.
16. y > 3
15. x –4