The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola.
the microphone itself is placed on the focus of the parabola. if the parabola is 24 inches wide
and 9 inches deep, how far from the vertex should the microphone be placed?

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct

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.

3.73 * 10^7 is the anser for ttm ur welcome < 3

step-by-step explanation: