Step by step explanation
<u>let x be the number of minutes and y be the total charges per month</u>
<em>A. Melissa's cell phone plan charges two cents a minute plus a $10 monthly fee. </em>
<em>y=0.02x+10</em>
<em> </em>
<em>B. Sandra's cell phone plan charges seven cents a minute. </em>
<em>y=0.07x</em>
<em />
<em>C. Holly's cell phone plan charges five cents per minute. She also receives a $5 discount each month.</em>
<em>y=0.05x-5</em>
<em />
<em> D. Alicia's cell phone plan charges six cents per minute plus a $5 monthly fee.</em>
<em>y=0.06x+5</em>
Answer:
The answer to your question is y = x - 5
Step-by-step explanation:
Data
Point = (4, -1)
line ║ to y = x - 1
Process
1.- Find the slope. The slope is the coefficient of the x.
y = 1x - 1
slope = m = 1
2.- Identify the values x1 and y1
x1 = 4 y1 = -1
3.- Find the equation of the line
y - y1 = m(x - x1)
-Substitution
y + 1 = 1(x - 4)
-Solve for y
y + 1 = x - 4
y = x - 4 - 1
-Result
y = x - 5
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we are given
number of branches is
number of leaves on each branch
the average number of leaves = (number of branches)*(number of leaves on each branch)
so, we can plug values
we get
now, we can plug values
now, we can simplify it
............Answer
