Question

What is the value of 3/8x-4.5 when x=0.4?

Answer 1

`( - 87)/(20)`
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Answer 2

The value of 3/8x-4.5 when x=0.4 is -4.35.

Explanation:

We have the following function:

`y = (3x)/(8) - 4.5`

What is the value of 3/8x-4.5 when x=0.4?

This is the value of y when x = 0.4. So:

`y = (3x)/(8) - 4.5 = (3*0.4)/(8) - 4.5 = -4.35`

The value of 3/8x-4.5 when x=0.4 is -4.35.