Question

The function h (d) = 2d + 4.3 relates the height (h) of the water fountain in feet to the diameter (d) of the pipe carrying the water in inches.
Find the value of d when h(d) = 10.3.

Answer 1

Here, we are required to ind the value of d when h(d) = 10.3 as they are related by the function:

h (d) = 2d + 4.3.

The value of d when h (d) = 10.3 is; d = 3

From the function given; h (d) = 2d + 4.3

where, d = diameter of the pipe

and h = height of the water fountain.

Therefore, when h (d) = 10.3;. we have;

• 10.3 = 2d + 4.3

• 2d = 10.3 - 4.3

• 2d = 6

• d = 3 feet.

Consequently, the value of d when h(d) = 10.3 is;

3 inches.

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