holyturnley
13.06.2021 •
Mathematics
NEED ANSWEER ASAP PLASE
We invest $2500 in an account that pays a simple interest of 3% each year. How much interest is earned after 10 years?
The interest earned after 10 years is $
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Ответ:
m=(y₂-y₁)/(x₂-x₁)
Data:
(-5,3)
(1,-3)
m=(-3-3) / (1+5)=-6/6=-1
the slope would be m=-1.
Point slope form: we need only a point (x₀,y₀) and the slope "m",
y-y₀=m(x-x₀)
In this case:
The point can be (-5,3) or (1,-3), we can choose either of these points.
For example, if we choose the point (-5,3) the point-slope form will be:
y-y₀=m(x-x₀)
y-3=-1(x+5)
y-3=-x-5
y=-x-5+3
y=-x-2 (this is, slope-intercept form : y=mx+b)
the equation of the line in slope intercept form is y=-x-2