Answer:
Step-by-step explanation:Write as two points in terms of: (number of people, cost in $)
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(15,120) and (25,200)
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Find the equation of the line using:
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m = (y2 – y1) / (x2 – x1) and y = mx + b
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Equation:
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Y = 8x
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plug in x = 40
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y = 8(40) = 320
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A party of 40 people will cost $320.00.
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Slope:
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m = 8 $/person
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For every person that attends the party, the caterer’s bill increases by $120.00.
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y-intercept: 0
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(0,0)
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This tells us that if no one attends the party, the caterer’s bill will be $0.00. So the
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caterer has no base cost they charge to caterer a party.
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Answer:
Graph B
The graph in the attached figure
Step-by-step explanation:
we have

This is a exponential function
of the form

where
a is the initial value
b is the base
r is the rate
b=1+r
In this problem
a=2 ----> the y-intercept
b=3
so
1+r=3 -----> r=3-1=2 -----> r=200%
so
The y-intercept of the graph is equal to 2
As x increases the value of f(x) increases
therefore
Graph B