Question

For the following exercises, evaluate the functionf at the indicated values.

1. W (x, y) = 4x2 + y
2. Find W (2 - 1) , W (-3, 6) .

Answer 1

`W (2, -1) = 15`

`W (-3, 6) = -30`

Explanation:

Given

`W (x, y) = 4x^2 + y`

Required

Find W (2 - 1) , W (-3, 6) .

Solving (1): W (2, - 1)

Substitute 2 for x and -1 for y

`W (x, y) = 4x^2 + y`

`W (2, -1) = 4 * 2^2 + (-1)`

`W (2, -1) = 16 -1`

`W (2, -1) = 15`

Solving (2): W (-3, 6)

Substitute -3 for x and 6 for y

`W (x, y) = 4x^2 + y`

`W (-3, 6) = 4 * (-3^2) + 6`

`W (-3, 6) = -36 + 6`

`W (-3, 6) = -30`