Find the discriminant and the numbers of real roots for this equation: 4x^2+12x+9=0

The quadratic equation has one real root with a multiplicity of 2.

Step-by-step explanation:

Given a quadratic equation:

You can find the Discriminant with this formula:

In this case you have the following quadratic equation:

Where:

Therefore, when you substitute these values into the formula, you get that the discriminant is this:

Since , the quadratic equation has one real root with a multiplicity of 2 .

0; one real number

Step-by-step explanation:

chase is right because he already been to the swings and he know how far it will be to get there

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.