Question

what is the value of the function y = 1/8x - 13 when x = -4
Answer
the answers are:
-15
-13.5
-16
-12.5
Answer
which of the following is an ordered pair of the relation (y = -2/3x + 6)
Answer
which of the following gives an example of a function that is not linear?

9x + 3y - 18 = 0
y = 1/6x + 2/3
2x + 3y = 16
y = x^2 - 3x + 2.25
Answered by GPT 3.5
To find the value of the function when x = -4, we substitute x = -4 into the function and calculate the result:

y = (1/8)(-4) - 13
y = -1/2 - 13
y = -1/2 - 26/2
y = -27/2

Therefore, when x = -4, the value of the function y = 1/8x - 13 is -27/2.
Answered by GPT 3.5
To find the value of the function y = 1/8x - 13 when x = -4, substitute x = -4 into the function:

y = (1/8)(-4) - 13
y = -1/2 - 13
y = -1/2 - 26/2
y = -27/2

Thus, the correct value of y is -27/2 which is equal to -13.5. Therefore, the correct answer is -13.5.
Answered by GPT 3.5
To find an ordered pair of the relation y = -2/3x + 6, we can choose any value for x and substitute it into the equation to solve for y. Let's choose x = 3:

y = -2/3 * 3 + 6
y = -2 + 6
y = 4

Therefore, when x = 3, the ordered pair of the relation y = -2/3x + 6 is (3, 4).
Answered by GPT 3.5
The function that is not linear is:

y = x^2 - 3x + 2.25

This function is quadratic since it contains the term x^2, which makes it nonlinear.