Answer:
B. -1
Step-by-step explanation:
STEP 1: Simplify 3x+2(x−9).

STEP 2: Add 8x and x.

STEP 3: Move all terms containing x to the left side of the equation.

STEP 3: Move all terms not containing x to the right side of the equation.

STEP 4: Divide each term by −4 and simplify.

Answer:
It is both a relation and a function.
Step-by-step explanation:
Keith collected the names and ages of all of his classmates and organized them in the ordered pair (name, age).
Here, if we consider the name as the input and age is the output, then each and every different input there is a single output.
Because a single person can not have more than one age.
Therefore, it is both a relation and a function. (Answer)
Answer: 9 diagonals
Step-by-step explanation:
Answer:
The answer to your question is y = 1/2x - 7
Step-by-step explanation:
Data
Point = (0, -7)
line = y = 1/2x + 5
Parallel line have the same slope.
Slope of the first line = 1/2
Slope of the new line = 1/2
Equation of the line
y - y1 = m(x - x1)
Substitution
y + 7 = 1/2(x + 0)
Simplification
y + 7 = 1/2x
result
y = 1/2x - 7
Answer:
19 shows direct variation
20 does not (guessing for this one a bit)
19- Shows a steady increase of four in y for each one in x
20- Shows no increase
Step-by-step explanation:
19 is a constant increase by 4, 20 does not show either