What is the primary goal when finding the zeros of a function?

Finding Zeros and Solving Quadratics

Interactive Video
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Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To find when the function is at its minimum
To find when the function equals zero
To find when the function is at its maximum
To find when the function is undefined
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What substitution is made for f(x) in the initial setup?
f(x) = 1
f(x) = 0
f(x) = x
f(x) = z
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it challenging to isolate the variable in the given equation?
Because the equation is quadratic
Because the equation has different powers of x
Because the equation is linear
Because the equation is already solved
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What common term is factored out to simplify the equation?
9
x^4
25
x^2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What equation is set up after factoring out common terms?
x^2 = 0 or 9x^2 + 25 = 25
x^2 = 0 or 9x^2 - 25 = 0
x^2 = 0 or 9x^2 + 25 = 0
x^2 = 0 or 9x^2 = 25
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the next step after setting up the equation 9x^2 - 25 = 0?
Subtract 25 from both sides
Divide both sides by 9
Multiply both sides by 9
Add 25 to both sides
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be considered when taking the square root of both sides?
Both positive and negative roots
Only the negative root
Only the positive root
No roots
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the final possible values for the zeros of the function?
0, 5/3, -5/3
0, 3/5, -3/5
0, 5, -5
0, 3, -3
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