1. It is a polynomial equation of degree two that can be written in the form ax² + bx + c = 0, where a, b, and c are real numbers and a 0. a. Linear equation
b. Linear inequality
c. Quadratic equation
d. Quadratic inequality
2. Which of the following is a quadratic equation?
a. 2r² + 4r - 1
b. 3t - 7 = 2
c. s² + 5s -4 = 0
d. 2x² - 7x<3
3. In the quadratic equation 3x² + 7x - 4 = 0, which is the quadratic term?
a. x²
b. 7x
c. 3x²
d. -4
4. Which of the following is written in standard form of quadratic equation?
a. x² - 8x + 15 = 0
b. x² + 8x = 2
c. x² = 4
d. 5x² - 15x = 10
5. In the standard form ax²+bx+c=0, which cannot be equal to zero for the equation to be quadratic?
a. A
b. B
c. C
d. A, B and C
6. The values of x that satisfy the equation are called
a. solutions
b. roots
c. a and b
d. none of them
7. How many real roots does the quadratic equation x² + 5x + 7 = 0 have?
a. 0
b. 1
c. 2
d. 3
8. The roots of a quadratic equation are -5 and 3. Which of the following quadratic equations has these roots?
a. x² - 8x + 15 = 0
b. x² + 8x +15 = 0
c. x² - 2x - 15=0
d. x² + 2x - 15 = 0
9. Using factoring method, what are the solutions or roots of the equation x² + 3x - 10 = 0
a. 5 and -2
b. -5 and 2
c. 5 and 2
d. -5 and -2
10. In the equation x² + x - 20 = 0, determine the values of x using factoring.
a. -4 and 5
b. 4 and -5
c. -4 and -5
d. 4 and 5
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