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14 QuestionsShow answers
Question 1
SURVEY
300 seconds
Q.
answer choices
±81
±9
±3
No real solution
Question 2
SURVEY
300 seconds
Q.
answer choices
-2, 4
-8
±8
No real solution
Question 3
SURVEY
300 seconds
Q.
answer choices
-4, 2
-2, 4
-16
-4
Question 4
SURVEY
300 seconds
Q. Find the zeros of this quadratic.
answer choices
b=4/5, b=3
b=4, b=-3
b=1/5, b=3
b=4/5, b=-3
Question 5
SURVEY
300 seconds
Q. Determine the values of a, b, and c for the quadratic equation: 4x2 – 8x = 3
answer choices
a = 4, b = -8, c = 3
a = 4, b =-8, c =-3
a = 4, b = 8, c = 3
a = 4, b = 8, c = -3
Question 6
SURVEY
300 seconds
Q. Suzie solves the equation below: x2 + 4x - 12 = 2 (x - 2)(x + 6) = 2, by setting x -2 = 0 and x + 6 = 0. Her solutions are x = 2 and x = -6. Is Suzie correct? Why or why not?
answer choices
Yes, she factored correctly and then used the zero product property
Yes, she factored correctly and then square rooted.
No, she did factor correctly, but she can't use the zero product property as shown.
No, she didn't factor correctly so the rest of her work is wrong.
Question 7
SURVEY
180 seconds
Q. 9k2 = 225
answer choices
4
4, -4
25, -25
-5, 5
Question 8
SURVEY
900 seconds
Q. Solve the quadratic equation by factoring a² + 10a + 21 = 0
answer choices
± √21
-3 , -7
3 , 7
28 , -7
Question 9
SURVEY
120 seconds
Q. Solve 4m2 - 100 = 0
answer choices
m=25, -25
m=96
m=5, -5
m=-96
Question 10
SURVEY
300 seconds
Q. What should you do first in solving this equation? x2 + 6x - 13 = 3
answer choices
Get factored form
Write down: a=1, b=6, c=-13
Make it equal 0 by subtracting 3 on each side
Type it all in a calculator.
Question 11
SURVEY
300 seconds
Q. In the equation y = x2 +5x +7, match each leading coefficient with its correct letter
answer choices
a=0, b=5, c=7
a=1, b=5, c=7
a=7, b=5, c=1
Question 12
SURVEY
120 seconds
Q. What is this?
answer choices
This is the speed of light formula.
This is the quadratic formula.
This is the zero product property.
This is scary.
Question 13
SURVEY
900 seconds
Q. Which method is most efficient to solve: 8x2 - 5x = 0