What is the function rule represented by the following mapping diagram?

y = -5x + 1
y = x + 1
y = -3x - 1
y = -4x

The linear function that maps the diagram is:

A linear function has the following format:

In which:

In the diagram, when , thus, the y-intercept is , and:

Point (1,-4) is on the diagram, which means that when , and this is used to find m.

Then, the equation is:

A similar problem is given at link

y = -5x + 1

Step-by-step explanation:

y = -5x + 1 is correct.  

Note that at x = 0, y = 0 + 1 = 1 → (0, 1), and

                at x = 1, y = -5 + 1 = -4 → (1, -4), and

                 at x = -1, y = 5 + 1 = 6  → (-1, 6)

answer: she must produce at least 9,000 windows in order to make a profit of $48,000

explanation:

48,000 - 12,000 = 36,000

36,000/4 = 9,000

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation: