Instruction:You'll answer all and perfect I'll give my brainliest (20 PTS EACH)
Nonsense:I WILL REPORT
1. The product of the roots of quadratic equation is:
b/a
-a/b
-b/a
c/a
2. The sum of the roots of quadratic equation is:
b/a
-a/b
-b/a
c/a
3. The quadratic equation 2^2 − 4 + = 0 has only one root. Use the discriminant to determine the value of d.
-2
2
3
4
4. The roots of a quadratic equation are -5 and 3. Which of the following quadratic equations has these roots?
^2 − 8 + 15 = 0
^2 + 8 + 15 = 0
^2 − 2 − 15 = 0
^2 + 2 − 15 = 0
5. How many real roots does the quadratic equation x^2 + 5x + 7 = 0 have?
0
1
2
3
6. The coefficients of a quadratic equation are all integers. The discriminant is 0. Which statement best describes its roots?
Two irrational roots
No Real roots
One rational root
Two rational roots
7. Find the value of the discriminant. How will you describe the number and type of roots for 3x2- 6x + 2 = 0?
A. Since the discriminant is greater than 0 and is perfect square, the roots are
B. Since the discriminant is greater than 0 and is not a perfect square, the roots are real and irrational.
C. Since the discriminant is less than 0, the roots are non-real
D. Since the discriminant is equal to 0, the roots are equal and real.
8. How many roots are there if the discriminant of a quadratic equation is greater than zero?
A. 1 real root
B. 2 real roots
C. 3 real roots
D. No Solutions
9. What is the nature of the roots of the quadratic equation if the value of its discriminant is zero?
A. The roots are not real
B. The roots are irrational and not equal.
C. The roots are rational and not equal.
D. The roots are rational and equal.
10. The sum of two numbers is 12 and their product is 35. What are the two numbers?
A. 5 and 7
B. -5 and -7
C. -5 and 7
D. 5 and -7
Share
Answer:
THE PICTURE IS ONLY RELATED IN MY ANSWER OF NUMBER 1
1.c/a
2.-b/a
Step-by-step explanation:
1.(look at the pic first)Therefore, the product of the roots of the quadratic equation ax2 + bx + c = 0 is c/a.
2.For a quadratic equation ax2+bx+c = 0, the sum of its roots = –b/a and the product of its roots = c/a. A quadratic equation may be expressed as a product of two binomials. Here, a and b are called the roots of the given quadratic equation.