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1. MULTIPLE CHOICE: Read and analyze each item. Choose the letter of the BEST answer. Write the letter
in capitalized form (Capslock) Ex. "A". Write your answers on a (1 pt. each item)
1. The solution/s of the equation x2 = 81 is/are
a) 9
b) -9
c) 9,-9
d) 9 nor-9
2. Find the solutions of the equation x2 - 9x + 20.
a) 4,5
b) -4,-5
c) 10,2
d) -10,2
3. What are the solutions of the equation x2 + 5x + 4? Use the completing the square method.
a) 1,4
b) -1,4
c) 1,-4
d)-1,-4
4. Where can we derive the quadratic formula?
a) ax2 + bx + c = 0 b) ax2 + bx = -C c) ax² = -bx - c
d) All
5. Given the quadratic equation x2 + 2x = 4, what is the value of c?
a) 1
b) 4
c)-4
d)2
6. On the same equation on Item 7, what is the value of a?
a) 1
b) 4
c) 2
d)-4
7. In the quadratic formula x =
-bt/6²-4ac
, b2 - 4ac is referred as
a) Discrete
b) Discrimination c) Discriminant
d)
Discriminate
8. Find the roots of the equation (x + 5)2 + (x - 2)2 = 37.
a) 1,4
b) 1,-4
c)-1, 4
d)-1,-4
9. If the square of a number is added to 3 times, the sum is 108. What are the numbers?
a) 11,9
b) 10,9
c) -17,9
d) -12,9
10. A quadratic inequality is an inequality that contains a polynomial of degree 2. This statement is
2a
b) Sometimes True
a) Always True
Undefined
c) Never True​