Finding X-Intercepts of Cubic Graphs
Interactive Video
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a characteristic feature of a cubic graph?
It has two x-intercepts.
It is a straight line.
It turns once.
It usually has three x-intercepts.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the point called where a graph changes from concave down to concave up?
X-intercept
Y-intercept
Turning point
Inflection point
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the y-intercept of a cubic graph?
Find the first derivative
Find the second derivative
Set x to zero
Set y to zero
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding turning points on a cubic graph?
Set the second derivative to zero
Set the first derivative to zero
Set x to zero
Set y to zero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes finding x-intercepts of a cubic graph challenging?
They are always at the origin
They are always imaginary numbers
There are usually three to find
They require solving a linear equation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial step in finding x-intercepts using a calculator?
Use the quadratic formula
Find the second derivative
Set y to zero and guess the first x value
Set x to zero and guess the first y value
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of factorizing the cubic equation?
To find the turning points
To find the x-intercepts
To simplify the equation
To find the y-intercept
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