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PIT_PIT [208]
4 years ago
12

The graph shows the relationship between the amount of change given from a $10 bill and the number of bagels purchased.

Mathematics
2 answers:
Soloha48 [4]4 years ago
6 0
The graph is a linear graph

The equation of a linear graph is given in the form y=mx+c where m is the gradient and c is the y-intercept

To find gradient:
Choose any two coordinates that lie on the line.
We choose (4,7) and (0, 10)
m= \frac{ y_{1}- y_{0}}{ x_{1}- x_{0} }
m= \frac{10-7}{0-4} =- \frac{3}{4}

the graph crosses the y-axis at 10, so the value of c=10

Forming the equation
y=- \frac{3}{4} +10

Answer: D
Inessa [10]4 years ago
5 0

Answer: i believe the answer is D

Step-by-step explanation:

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