Equations and Graph Practice Set

1. What are simultaneous equations.

2. The pair of equation x = -2 and x = 3 has ____ solutions.

3. Graph is used in drawing _____ dimensional.

4. What is the intersection point of the lines x + y = 4 and x – y = 0.

5. What is the value of x in the equation x + 3y = 7 if y = 1?

6. Solve: x + 3 = 21.

7. Solve: 3x + 1 = 2x + 7.

8. Solve: x2 = 25.

9. Solve: 25/x = x/9 .

10. Solve: x2 – 29 = 7.

Answers:

1. Set of two or more equations involving multiple variables that are solved together to find the values of those variables that satisfy all the equations simultaneously.

2. x2 + 5x + 6 = 0

3. two (2)

4. (2,2)

5. 4

6. 18

7. 6

8. 5

9. 15

10. 6