Which equation is a direct variation function? A) y = x B) y = (1/4)x + 2 C) y = x^2 D) y = 4
1 answer:
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Functions can be modeled by equations, tables and graphs
- The equation that models the function is
- The domain of the function is the set of whole numbers
- The company should expect 4 box office gross in week 10
From the question, we have the following ordered pairs
(x,y) = (0,1) and (4,2)
The function is a linear function.
So, we start by calculating the slope (m) using:
Substitute known values
The equation is then calculated as:
This gives
The domain of the above function is the set of whole numbers
Substitute 10 for x, to calculate the number of box office gross for week 10
Approximate
Hence, the company should expect 4 box office gross in week 10
Read more about linear functions at: