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3 years ago

Line C and D are perpendicular. If the slope of a line c is -4, what is the slope of line D?

Mathematics

2 answers:

olga_2 [115]3 years ago

5 0

Answer:

$\frac {1}{4}$ is slope for line D

Step-by-step explanation:

Step 1: Find the slope of the line D

Flip the sign on Line C

-4 was previous

4 is new

Convert to reciprocal

4 was previous

1/4 is new

Answer: $\frac {1}{4}$ is slope for line D

andrew11 [14]3 years ago

4 0

Answer:

1/4

Step-by-step explanation:

The slope of a line is the steepness of a line.

The slope of a perpendicular line is always the negative reciprocal of the slope of the line it is perpendicular with.

Since line C has a slope of -4, the negative reciprocal of that is 1/4.

Reciprocals are two numbers that multiply together to get 1.

For example, -1/4*-4/1=1

Therefore the negative recipricol is 1/4

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Solve for x: 4x – 7 = 8x + 33

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Answer:

x = 10

Step-by-step explanation:

Hey there!

To solve this question we will use PEMDAS (order of operations)

4x−7=8x+33

Subtract 8x from both sides.

4x−7−8x=33

Combine 4x and −8x to get −4x.

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Add 7 to both sides.

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Add 33 and 7 to get 40.

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x= 40/-4

Divide 40 by −4 to get −10.

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