Help please! -x - (-15) + -3.5x + 15
2 answers:
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The answer is Option B
Step-by-step explanation:
Step 1: Group the given cubic polynomial into two sections.
So polynomial can be grouped as
Step 2:Find what's the common in each section.
In section the come term is
In section (8x + 48) the come term is 8
Step 3:Factor the commonalities out of the two terms.
Factoring out from the first section
, we get
Factoring out 8 from the second section(8x + 48) , we will get 8(x + 6).
Step 4: Combine the factors together for terms contains the same factor,
Combining we get,
Let's rewrite each equation in the Slope-Intercept Form of the Equation of a Line. First, let's start with the main equation:
Then, our options are the following:
For two perpendicular lines it is true that the product of its slopes is:
According to this, only A) B) and D) might be the perpendicular lines we are looking for. Notice that these lines are the same. The other condition is that the line must pass through the point (5, -4). By substituting this point in the equation, we have:
Finally, the right answer are: