What are the factors of x² + 3x - 4?
2 answers:
Answer:
(x + 4) and (x - 1)
Step-by-step explanation:
x² + 3x - 4
You want to look for what numbers can be multiplied in order to get the 3rd number (the -4) that can also add/subtract to the middle number (the 3)
simply,
(4)(-1) = -4
(4) -1 = 3
to make sure you can also reverse it and if you get to the same thing that you started with it is correct.
(check photo)
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The equation of line perpendicular to 4y = x-8 passing through (3,-3) is:
Step-by-step explanation:
Given equation of line is:
We have to convert the given line in slope-intercept form to find the slope of the line
So,
Dividing both sides by 4
Let m1 be the slope of given line
Then
Let m2 be the slope of line perpendicular to given line
As we know that produt of slopes of two perpendicular lines is -1
The slope intercept form of line is given by:
Putting the value of slope
to find the value of b, putting (3,-3) in equation
Putting the value of b in the equation
Hence,
The equation of line perpendicular to 4y = x-8 passing through (3,-3) is:
Keywords: Equation of line, slope
Learn more about equation of line at:
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