 3 years ago
deleon1214
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Solo Practice
Practice 14 QuestionsShow answers
• Question 1
300 seconds Q.
±81
±9
±3
No real solution
• Question 2
300 seconds Q.
-2, 4
-8
±8
No real solution
• Question 3
300 seconds Q.
-4, 2
-2, 4
-16
-4
• Question 4
300 seconds Q. Find the zeros of this quadratic.
b=4/5, b=3
b=4, b=-3
b=1/5, b=3
b=4/5, b=-3
• Question 5
300 seconds
Q. Determine the values of
a, b, and c for
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
• Question 6
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?
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
180 seconds
Q. 9k2 = 225
4
4, -4
25, -25
-5, 5
• Question 8
900 seconds
Q. Solve the quadratic equation by factoring
a² + 10a + 21 = 0
± √21
-3 , -7
3 , 7
28 , -7
• Question 9
120 seconds
Q. Solve
4m2 - 100 = 0
m=25, -25
m=96
m=5, -5
m=-96
• Question 10
300 seconds
Q. What should you do first in solving this equation?
x2 + 6x - 13 = 3
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
300 seconds
Q. In the equation
y = x2 +5x +7, match each leading coefficient with its correct letter
a=0, b=5, c=7
a=1, b=5, c=7
a=7, b=5, c=1
• Question 12
120 seconds Q. What is this?
This is the speed of light formula.
This is the zero product property.
This is scary.
• Question 13
900 seconds
Q. Which method is most efficient to solve:
8x2  -  5x  = 0
Square Roots
Greatest Common Factor
X-Factor