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vampirchik [111]
3 years ago
15

A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $155 for 100 minutes of us

age and $245 for 200 minutes of usage. An equation can be written to show the relationship between the total minutes used (x) and the total monthly charges (y). Which of the following best describes the steps to draw the graph of y against x?
A) draw a graph which joins the points (155, 100) and (245, 200) and has a slope = 0.9
B) draw a graph which joins the points (155, 100) and (245, 200) and has a slope = 1.1
C) draw a graph which joins the points (100, 155) and (200, 245) and has a slope = 1.1
D) draw a graph which joins the points (100, 155) and (200, 245) and has a slope = 0.9
Mathematics
2 answers:
torisob [31]3 years ago
8 0

Answer:

The answer is D.

Step-by-step explanation:

As said in the problem, we are labeling the total minutes used <em>x </em>and the total monthly income as <em>y</em>. This means that in the graph we will be making the y-axis should represent the total monthly charges, and the x-axis should represent the total minutes.

Thus the graph should go through points (100,155) and (200,245) and its slope is:

\frac{245-155}{200-100} =0.9.

Vinil7 [7]3 years ago
3 0

Answer:

The answer would be D according the the question at hand.

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