PLEASE HELP ASAP! Will give BRAINLIEST! Please answer correctly! No guessing!
2 answers:
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Answer:
a)
And we want to find a function:
We can find the slope with this formula:
And then we can use the point to find the intercept
and we got:
So then the linear function is given by:
b) For this case we have that m = 475 so we can replace into the function to find the cost like this:
And for the other case we have a cost of 155 and we want to find the number of miles associated so we can do this:
Step-by-step explanation:
For this case we can define the following notation:
m= represent the miles travelled
C= represent the cost
Part a
For this case we have the following two points given:
And we want to find a function:
We can find the slope with this formula:
And then we can use the point to find the intercept
and we got:
So then the linear function is given by:
Part b
For this case we have that m = 475 so we can replace into the function to find the cost like this:
And for the other case we have a cost of 155 and we want to find the number of miles associated so we can do this:
those are the vertex form of a parabola... so hmmm
the vertex of this one is at 0,1 and intercepts or "solutions" are at -1 and 1, so is opening downwards, notice the picture below
that means, the squared variable is the "x", thus the form is
now, we know the vertex is at 0,1, and two x-intercepts of
thus
solve for "a", to see what that coefficient is, then plug it back in the vertex form equation
