Write a quadratic equation in the form x^2 + bx+c=0 that has the following roots:
Roots: 10 _+ square root7

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

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.

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.