graph the quadratic y=x2+3x+8 . What is the x-intercept(s)?(1 point)

Responses

(−1.5,5.75)

There is no x-intercept.

(0,8)

−1.5

1 answer

To find the x-intercepts of the quadratic equation \( y = x^2 + 3x + 8 \), we need to determine where \( y = 0 \).

Setting the equation to zero:

\[ x^2 + 3x + 8 = 0 \]

Next, we can use the discriminant \( D = b^2 - 4ac \) to find the nature of the roots, where \( a = 1 \), \( b = 3 \), and \( c = 8 \):

\[ D = 3^2 - 4 \cdot 1 \cdot 8 = 9 - 32 = -23 \]

Since the discriminant is negative, this means there are no real solutions, and consequently, there are no x-intercepts.

Thus, the correct response regarding the x-intercept of the quadratic \( y = x^2 + 3x + 8 \) is:

There is no x-intercept.