Answer:
a) 
b) independent variable: x - number of DVDs rented
dependent variable: y - the monthly cost of rent of x DVDs
c) $26
Step-by-step explanation:
<u>Question:</u>
Your DVD membership costs $16 per month for 10 DVD rentals. Each additional DVD rental is $2.
a. Write an equation in two variables that represents the monthly cost of your DVD rentals.
b. Identify the independent and dependent variables.
c. How much does it cost to rent 15 DVDs in one month?
<u>Solution:</u>
Let x be the number of DVDs rented, and y be the monthly cost of rent of x DVDs.
a) For the first 10 DVDs you should pay $16 and for the next (x - 10) DVDs you have to pay additional $2 per DVD.
Then the total cost is

b) Independent variable is x, dependent variable is y (the cost depends on number of DVDs rented).
c) If x = 15, then

It will cost $26 to rent 15 DVDs.
Answer:
B. y = |2x| - 2.
Step-by-step explanation:
If we start with y = 2x:
this passes through the origin and has a slope of 2.
y = |2x| means the absolute ( positive) values only, so the part of the line below the x axis is reflected in the axis to form a V shaped graph.
So we have a V shaped graph with the vertex at (0, 0).
Then -2 brings the vertex from (0, 0) to (0 -2) so we get:
y = |2x| - 2.
Answer: 11
Step-by-step explanation:
Given
The equation of the line
passes through the point 
So, point must satisfies the line i.e.

Therefore, the value of p is 11.
Answer:
a
Step-by-step explanation:
Answer:
90 m²
Step-by-step explanation:

10 · 18
180
180 ÷ 2
90