Graphing Quadratic Functions and Determining Zeros

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Mathematics, Information Technology (IT), Architecture
•
1st - 6th Grade
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary focus of this lesson?
Graphing linear equations
Graphing 2-degree polynomials and finding zeros
Solving quadratic equations
Understanding linear functions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When substituting x = 1 into the function y = 2x^2 - 3x + 1, what is the value of y?
2
3
0
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of substituting x = 2 into the function y = 2x^2 - 3x + 1?
1
5
7
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which x-value results in a zero for the function y = x^2 + 2x - 8?
x = 1
x = -2
x = 0
x = 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common misunderstanding about zeros in a table of values?
Zeros are only at positive x-values
Zeros must cross the x-axis
Zeros must cross the y-axis
Zeros are always at the origin
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the zeros of the function f(x) = -2x^2 + 7 algebraically?
Set f(x) to x^2 and solve
Set f(x) to 7 and solve
Set f(x) to 0 and solve
Set f(x) to -2 and solve
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the approximate value of the zeros for the function f(x) = -2x^2 + 7?
±1.87
±3.87
±2.87
±0.87
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