Answer:
The slope of a line that is perpendicular to the x-axis is undefined.
Step-by-step explanation:
We know that the x-axis is a horizontal line.
- We also know a line that is perpendicular to the x-axis is basically a vertical line.
- As the slope of a perpendicular line is undefined because no matter what the value of y is, the x-value remains the same.
Therefore, the slope of a line that is perpendicular to the x-axis is undefined.
For example, the slope between (1, 2) and (1, 4) is:
Using the slope formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [4 - 2] / [1 - 1]
= 2 / 0
= ∞
The correct Option is (C) 5x(3x^2 + 4)
Explanation:
15x^3 + 20x
Take common terms out:
5x(3x^2 + 4) Which is option C.
Just remember that the word "of" means "multiply" in mathematical terms
Now lets get started working out this problem of yours

Also, remember:

and down is rounded to

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and up is going closer to