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- 1. Multiple ChoiceWhat is the first step in solving a system by Substitution?Make sure both equations are in standard form.Make sure at least one equation is solved for one variable.Make sure both equations are in slope-intercept form.Make sure both equations can be solved.
- 2. Multiple ChoiceSolve this system of equations.
y = 2x + 1
y = 4x - 1(1,3)(-1,-3)(-1,3)(3,1) - 3. Multiple Choicey = -2x + 5
y = 2x - 11No Solution(0, 0)(3, -1)(4, -3) - 4. Multiple ChoiceSolve the system by substitution.
5x + 4y= −14
y = −7x − 15(-2, -1)(1, -2)(-2, 1)(-1, -2) - 5. Multiple ChoiceSolve:
y = 2x -11
-3y = -6x -15(-1.5,-4)(1.5,4)No solution (parallel lines)Infinitely many solutions - 6. Multiple Choicex + 2y = 2
x = -4y + 2(-3, 0)(0, 2)(-3, -2)(2, 0) - 7. Multiple Choicex - 3y = -13
4x + 2y = 4(1, 4)(-1, -4)(-1, 4)(1, -4) - 8. Multiple Choicey = -6x + 5
-2x + y = 5(-3, -6)(-6, 3)(0, 5)(-3, 5) - 9. Multiple Choicey = -3x + 11
y = -6x - 13(-8, 35)(8, -13)(1, 8)(2, 13) - 10. Multiple Choicey = -2x + 5
y = 2x - 11No Solution(0, 0)(3, -1)(4, -3) - 11. Multiple ChoiceSolve for x and y
y = 2x + 1
y = 4x - 1(1,3)(-1,-3)(-1,3)(3,1) - 12. Multiple Choice
Infinite number of solutions
(0, 7)
(-5, -7)
(5, 7)
- 13. Multiple Choice
No Solution
(2, 2)
(-1, 2)
(-1, -2)
- 14. Multiple Choice
(4, -3)
(-1, -3)
(-4, -3)
(-4, 3)
- 15. Multiple Choice7x + y = -20
y = 3x + 10(-3, 1)(-1, -3)(-3,-7)(-1,7) - 16. Multiple Choicey = -2x + 18
y = 8(5, 8)(-5, 8)(2, 8)(-2, 8) - 17. Multiple ChoiceSolve for x and y
3x + 2y = 16
7x + y = 19(-2,5)(-2,-5)(2,-5)(2,5) - 18. Multiple ChoiceSolve for x and y
y = 2x + 1
y = 4x - 1(1,3)(-1,-3)(-1,3)(3,1) - 19. Multiple Choicex - 3y = -13
4x + 2y = 4(1, 4)(-1, -4)(-1, 4)(1, -4) - 20. Multiple ChoiceWhat is the solution to this system of equations?(4, -1)(-1, 4)(-4, 1)(-4, -1)
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