3 A fashion designer checks the price of a certain fabric. Manufacturer A charges $7.50 per yard. The graph shows the price that
Manufacturer B charges. a. What is the initial value of each function? b. How much does 400 yd of fabric cost at each manufacturer? How much does 800 yd of fabric cost at each manufacturer? c. What can you conclude about the two functions? Explain. d. Manufacturer C offers the fabric for $5.50/yd but you have to buy at least 500 yd. What should the designer do if she needs 400 yd? Explain.
1 answer:
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we have
Isolate the variable y
Subtract both sides
Divide by both sides
The equation of the line of this inequality is
The slope is negative and is equal to
The y-intercept is the point ----> value of y when the value of x is equal to zero
The x-intercept is the point ----> value of x when the value of y is equal to zero
The solution of the inequality is the shaded area above the dotted line
Using a graphing tool
see the attached figure
The answer in the attached figure
