The equation for the total amount charged is y = 60 + 45x
<h3>How to create the equation?</h3>
The given parameters are:
Rate = $60 per service
Installation = $45
Let y represents the total charges and x represents the number of services.
So, we have
y = Installation + Rate * x
This gives
y = 60 + 45 * x
y = 60 + 45x
See attachment for the graph of the function
Read more about linear equations at:
brainly.com/question/4025726
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Answer:
um... the.... second... one...? and nice Jake picture
Step-by-step explanation:
This tells you two things
1-r is positive, so grade school performance and Regents exam score tendto increase and decrease together.
2-r is fairly close to 1, so the direct relationship is fairly strong.
Calculate the slope between each point, if you dont get the same slope, its not a straight line, therefore not directly proportional.
Subtract equation (2) from equation (1)
Subtract the like terms (ie subtract straight down)
2x - x = 1x = x
y - y = 0y = 0 so the y terms go away
-2 - 5 = -7
We end up with x = -7