Algebra 1 - MathnMind

4-4
Find the solution set for each equation, given the replacement set.
1. y 2 5x; {(3, 12), (3, 17), (2, 8), (1, 7)}
2. 3x 2y 1; {(1, 1), (2, 2.5), (1, 1.5), (0, 0.5)}
Solve each equation if the domain is {2, 1, 2, 3, 5}.
3. y 4 2x
4. x 8 y
NAME ______________________________________________ DATE ____________ PERIOD _____
5. 4x 2y 10
6. 3x 6y 12
7. 2x 4y 16
1
8. x y 6
2
Practice
Equations as Relations
Solve each equation for the given domain. Graph the solution set.
1
9. 2x 4y 8 for x {4, 3, 2, 2, 5} 10. x y 1 for x {4, 3, 2, 0, 4}
2
O
EARTH SCIENCE For Exercises 11 and 12, use the
following information.
Earth moves at a rate of 30 kilometers per second around
the Sun. The equation d 30t relates the distance d in
kilometers Earth moves to time t in seconds.
11. Find the set of ordered pairs when
t {10, 20, 30, 45, 70}.
12. Graph the set of ordered pairs.
GEOMETRY For Exercises 13–15, use the following information.
1
The equation for the area of a triangle is A bh. Suppose the area of triangle DEF is
2
30 square inches.
13. Solve the equation for h.
y
x
14. State the independent and dependent variables.
15. Choose 5 values for b and find the corresponding values for h.
Distance Earth Travels
Time (s)
© Glencoe/McGraw-Hill 234 Glencoe Algebra 1
Distance (km)
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300
0 10 20 30 40 50 60 70 80