A) A coat that sells for $240 is marked down 20%. What is the sales price of the coat. B) If the cost sells for x dollars, what
1 answer:
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The average profit of the local store is an illustration of an exponential function
The profit function is:
From the question, we have:
- Initial value (a) = 960
- Rate per year (b) = 88%
An exponential function is represented as:
So, the function that represents the profit per year is:
Divide x by 12 to get the monthly rate
Evaluate the exponent
Hence, the profit function is:
Read more about exponential functions at:
Answer:
see the explanation and the attached figure
Step-by-step explanation:
Part 1) Linear
we have
This is the equation of the line in slope intercept form
The slope is positive and equal to m=1
The y-intercept is b=3
As the value of x increases the value of y increases too
As the value of x decreases the value of y decreases too
therefore
The graph in the attached figure
Part 2) Quadratic function
we have
This is a vertical parabola open upward with the vertex at origin
As the value of x increases the value of y increases too
As the value of x decreases the value of y increases
therefore
The graph in the attached figure
Part 3) Exponential function
we have
This is a exponential growth function
As the value of x increases the value of y increases too
As the value of x decreases the value of y decreases too
The initial value or y-intercept is 3
therefore
The graph in the attached figure
