The length of a rectangle is three more than its width. If the perimeter is 46 feet, what are the dimensions of the rectangle?
2 answers:
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You can plot a linear equation, if you are given the coordinates and the slope for THE SAME line.
Assuming you have those, the first step is to find the y-intercept.
That is done by replacing and
in the general formula by their coordinated counterparts, and replacing
by the slope that is given to you.
Let's assume the coordinates you are given are , and the slope you are given is 1.
By substituting into the general formula...
...we can see that it is possible to find the y-intercept ().
Knowing the y-intercept, it is possible to plot the line and solve any question.
I'll leave a picture of the example used above when graphed.
Answer:
y=14.95x is a linear function.
linear functions have a range of all real numbers
which can be represented by using interval notation which looks like this
(replace the dot with a comma)