1. Which of the following equations represents a quadratic function?
a. y = 3 + 2x²
b. 2y + 3² = x
c. y = 3x - 2²
d. y = 2^x - 3
2. Which of the following equations is quadratic function?
a. 9y² + 3 = x
b. y = 2x² - 7x + 1
c. y = 3x - 8²
d. y = 3x - 3
3. Which of the following is NOT quadratic function?
a. y = 5x²
b. 6x (x + 3) = y
c. y = - 3 (x - 2) (x - 1)
d. y = 2 (x+5)
4. Which of the following is a quadratic function?
a. 2x + y = 6
b. 2x² – 3x + 1 = 0
c. y = 2x² - 6
d. 2x - y² = 6
5. What is true about the equation
y + 2x² = 2x (x + 1)?
a. The equation represents quadratic function because the highest degree of the variable is 2
b. The highest degree of the variable is 3. Thus, it is not quadratic function.
c. If the function is expanded it will be
2x² + 2x + 1. Thus, the equation represents quadratic function.
d. If you will simplify and rearrange the function, it will be in the form of
y = mx + b. Therefore, it is not quadratic function but a linear function.
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Answer:
1.a
2.c
3.a
4.c
5.c
Step-by-step explanation:
hope its help