Answer:
-19
Step-by-step explanation:
f(x) = -11 + 8x
f(-1) =-11 + 8(-1)
= -11 -8
= -19
Answer:

Step-by-step explanation:
The domain of a function is all possible values for the value of x.
The denominator in a rational function cannot equal to 0.

Subtracting 2 from both sides.

The domain of the function is all real numbers except -2.
Answer:
k is 2/3 and y is -1/3 when x is -0.5.
Step-by-step explanation:
The direct variation relationship is y = kx, where k is the const. of var.
Subbing 3 for x and 2 for y, 2 = 3k, or k = 2/3.
Now, if x = -0.5, y = (2/3)(-1/2) = -1/3
k is 2/3 and y is -1/3 when x is -0.5.
15x over 2 dont know how to do it on computer
Answer:
The equation for this sentence is: 9 = 2(4y)