What is the value of the function y=1/8x-13 when x =-4?
To find the value of the function y = (1/8)x - 13 when x = -4, substitute -4 for x in the equation:
y = (1/8)(-4) - 13
Calculating this expression, we get:
y = -1/2 - 13
y = -1/2 - 26/2
y = -27/2
Thus, the value of the function y = (1/8)x - 13 when x = -4 is -27/2.
Which of the following is an ordered pair of the relation y= -2/3 x+6?
To determine an ordered pair of the relation y = (-2/3)x + 6, we need to substitute values for x and solve for y.
Let's try x = 3:
y = (-2/3)(3) + 6
= -6/3 + 6
= -2 + 6
= 4
Therefore, the ordered pair is (3, 4).
To find the value of the function y=1/8x-13 when x=-4, you need to substitute -4 into the equation for x and calculate the value of y.
Step 1: Plug in the value of x into the equation.
y = 1/8(-4) - 13
Step 2: Simplify the expression.
y = -1/2 - 13
Step 3: Perform the subtraction.
y = -1/2 - 26/2
Step 4: Combine the fractions.
y = (-1 - 26)/2
Step 5: Complete the subtraction.
y = -27/2
Therefore, the value of the function y=1/8x-13 when x=-4 is -27/2.