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- 1. Multiple Choice-3a + 8 = 14a= -2a= -7.5a= 2a= 6
- 2. Multiple Choice
The first step in solving using the substitution method is __________.
get x by itself
get y by itself
get either variable by itself in one equation
add the equations together
- 3. Multiple ChoiceSolve the system of equations using substitution:
-4x + 4y = 8
y = -2x - 10(-4, -2)(12, -34)(4, -18)(-2, -6) - 4. Multiple Choice
Solve this system by substitution.
(1, -4)
(1, 4)
(-4, -7)
(-7, -4)
- 5. Multiple ChoiceThe first step in solving using the substitution method is __________.get x by itselfget y by itselfget either variable by itselfadd the equations together
- 6. Multiple Choice
What is the first step in solving a system of equations by elimination/matrices?
Get both equations in standard form and line up the like terms.
Get both equations in slope-intercept form.
Get both equations equal to zero.
Put the x terms first.
- 7. Multiple Choice
Which is the best method to use?
y = 6x − 11
−2x − 3y = −7
Graphing
Substitution because a variable is isolated.
Elimination because both equations are in standard form.
- 8. Multiple Choice
Solve the system by elimination.
8x +10y = - 20
−8x − 6y = −4
Infinite number of solutions
(6, 5)
(−6, −5)
(5, −6)
No Solution
- 9. Multiple ChoiceFind x and y using the elimination method
2x+3y=7
2x+7y=11x=-2, y=-1x=2, y=-1x=2, y=1x=-2, y=1 - 10. Multiple ChoiceSolve by elimination:
7x-9y=29
7x+2y=-15(-4,-1)(-1.-4)(-1,4)(-1,6) - 11. Multiple ChoiceA babysitter earns $8 an hour for babysitting 2 children and an additional $3 tip when both children are put to bed on time. If the babysitter gets the children to bed on time, what expression could be used to determine how much the babysitter earned?8x+3 where x is the number of hours3x+8 where x is the number of hoursx(8+2) + 3 where x is the number of children3x+(8+2) where x is the number of children
- 12. Multiple Choicex + 5 > 7x > -2x > 2x > 12x > -12
- 13. Multiple Choice-24 + k ≤ 10k ≤ 1434 ≤ kk ≤ 3414 ≤ k
- 14. Multiple Choice-4x + 14 ≤ 54x ≥ - 10x ≤ -10x ≥ 10x ≤ 10
- 15. Multiple ChoiceSue's lunch account has $25 and she spends $2.50 every day. Troy's lunch account has $50 and she spends $3.25 every day. Write an inequality that shows when Sue's account will be more than Troy's.25 - 2.5d > 50 - 3.25d25 - 2.5d < 50 - 3.25d25 + 2.5d > 50 + 3.25d25 + 2.5d < 50 + 3.25d
- 16. Multiple ChoiceFactor:
x2 + 7x - 30(x + 10)(x - 7)(x - 10)(x + 3)(x + 10)(x + 3)(x + 10)(x - 3) - 17. Multiple ChoiceFactor
x2 + 9x - 36(x + 12)(x - 3)(x + 9)(x - 4)(x - 12)(x + 3)(x - 9)(x - 4) - 18. Multiple ChoiceFactor:
p2 - 14pp(1 - 14)2p(p - 7)p2(1-14)p(p - 14) - 19. Multiple Choice
Factor:
x2 + 4xy + 4y2
(x + y)(4x + 4y)
(x + 2y)2
(2x + y)(2x + y)
(x + 2)(x + 2)
- 20. Multiple Choice
Determine the values of a, b, and c for the quadratic equation:
4x2 – 8x = 3
a = 4, b = -8, c = 3
a = 4, b =-8, c =-3
a = 4, b = 8, c = 3
a = 4, b = 8, c = -3
- 21. Multiple Choice
Determine the values of a, b, and c for the quadratic equation:
4x2 – 8x = 3
a = 4, b = -8, c = 3
a = 4, b =-8, c =-3
a = 4, b = 8, c = 3
a = 4, b = 8, c = -3
- 22. Multiple Choice
Use the quadratic formula to solve 2x2 + 2x - 12.
-2, 3
2, 3
2, -3
-2, -3
- 23. Multiple ChoiceSolve using the Quadratic Formula:
x2 + 4x + 3 = 0x = 1 and x = 3x = 6 and x = -2x = -1 and x = -3 - 24. Multiple ChoiceDetermine the values of
a, b, and c for
the quadratic equation:
4x2 – 8x = 3a = 4, b = -8, c = 3a = 4, b =-8, c =-3a = 4, b = 8, c = 3a = 4, b = 8, c = -3 - 25. Multiple ChoiceIdentify the 'a' value: y = 16x2 -8x -24168-8-24
- 26. Multiple ChoiceSimplify by cancelling1-1Can't be simplified
- 27. Multiple ChoiceSimplify.1/(n-7)n-7(n-6)/(n-7)n-6
- 28. Multiple ChoiceFind the least common denominator of the expression186x3xy6xy
- 29. Multiple ChoiceSimplify:6b + 7b - 103b13b - 1013b2 - 103b2
- 30. Multiple ChoiceSimplify by combining like terms:
5a + 2b - 3a + 48a + 2b + 42a + 2b + 48ab4ab + 4 - 31. Multiple ChoiceWhat is the first step in solving the equation 2a - 4(a - 5) = 10Add 4 to both sidesAdd the 2a and aDistribute 4 to a and -5Distribute -4 to a and -5
- 32. Multiple Choice8v - 4(v + 8) = 82104-4
- 33. Multiple Choice42-2-4
- 34. Multiple ChoiceFive times as many as seven is thirty-five5 x 7 = 3535 = 5 x 75 + 7 = 3535 = 5 + 7
- Answer choicesTagsAnswer choicesTags