112k views
1 vote
The graph of a certain quadratic function has no x-intercepts. Which of the following are possible values for the discriminant? Check all that apply.

A. -7
B. 18
C. -25
D. 0

User Webucator
by
7.5k points

2 Answers

3 votes
Answer is A and C




Hope this helps others
User Franck Dernoncourt
by
7.4k points
2 votes

Answer:

-7 and -25

A and C are correct

Explanation:

The graph of a certain quadratic function has no x-intercepts.

As we know if graph has no x-intercept then complete graph either above x-axis or below x-axis.

The zeros of this quadratic function are imaginary.

Discriminant = D


y=ax^2+bx+c


D=b^2-4ac

D must be negative for imaginary zeros.

In the given options A=-7 and C=-25 are negative.

Hence, -7 and -25 are discriminant which has no x-intercept.

User Neurozero
by
8.3k points