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3 years ago

If a(x) = 3x + 1 and p(x)= x-4, what is the domain of (b•a)(x)?

Mathematics

1 answer:

Sedbober [7]3 years ago

7 0

Answer:

all real numbers

Step-by-step explanation:

Both a(x) and b(x) are polynomials. The set of polynomials is closed on multiplication, so (b•a)(x) will also be a polynomial. All polynomials are defined for all real numbers. The domain is the set of input values (x) for which the function is defined.

The domain of (b•a)(x) is all real numbers.

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KonstantinChe [14]

Answer:

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Step-by-step explanation:

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3 years ago

When constructing a perpendicular line through a point on a line, how can you verify that the lines constructed are perpendicula

aniked [119]

Answer:

Step-by-step explanation:

perpecndicular means they intersect in right angle which is 90°, no matter how long lines are.

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3 years ago

Read 2 more answers

Which description best compares the graphs given by the equations:

nexus9112 [7]

x - 5y = -5, -5x - 25y = 25

First, you'll need to get the x variable by itself.

x - 5y = -5
 +5 +5
 x = 0
So x is plotted on the 0.

For the second part of the first equation, you'll be looking for what the y variable represents.

x - 5y = -5
-x -x
 -5y = -5
 5 5
 y = 1
So y is plotted on the 1 on the vertical line above the 0.

For the first part of the second equation, you'll do the same thing as in the first equation.

-5x - 25y = 25
 +25 +25
 -5x = 50
 5 5
x = 10
So the x for this equation is plotted on 10 on the horizontal line.

For the second part of the second equation, you will do the same thing as in the first equation.

-5x - 25y = 25
+5 +5
 -25y = 30
 25 25
y = 1.2
So the y for the second half of the second question is plotted on 1.2 on the vertical line.

<h2>Answer: B) Perpendicular</h2>

Perpendicular means the lines may or may not be of equal length and they will not be perfectly in line with each other.

Parallel means the lines may or may not be of equal length but will be perfectly in line with each other.

Intersecting means the lines may or may not be of equal length but will touch each other.

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2 years ago

Find the least common denominator of 7 and X+4 x-4

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(X+4)(X-4) is the LCD because you just have to look at the denominators and see what factors or values are not already part of your LCD.

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