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4 years ago

HELPING ANS WILL GET BRAINLIEST

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7 0

You got to get the correct answer for someone to do that. If there is a slight issue, than thats why its marked as good.

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Find the parallel and perpendicular slope of a line if linear equation is 7y=20(x-3) Slope (Parallel) is ____ Slope (Perpendicul

yKpoI14uk [10]

Answer:

The parallel line has slope $\frac{20}{7}$

The perpendicular line has slope $-\frac{7}{20}$

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

$y = mx + b$

In which m is the slope.

Parallel lines:

Parallel lines have the same slope.

Perpendicular lines:

If two lines are perpendicular, the multiplication of their slopes is -1.

In this question:

We have the following line:

$7y = 20(x-3)$

Placing it in the general format

$7y = 20x - 60$

$y = \frac{20x}{7} - \frac{60}{7}$

So this line has slope $\frac{20}{7}$

Parallel line:

Same slope, so the parallel line has slope $\frac{20}{7}$

Perpendicular line:

Multiplication of the slopes is -1. So

$\frac{20m}{7} = -1$

$20m = -7$

$m = -\frac{7}{20}$

The perpendicular line has slope $-\frac{7}{20}$

6 0

3 years ago

Given the point (5, 6) and the slope of 5, find y when x = 21.

Darina [25.2K]

Y = mx + b....(5,6)
slope(m) = 5
now we sub
6 = 5(5) + b
6 = 25 + b
6 - 25 = b
- 19 = b

so ur equation is : y = 5x - 19...now we sub in 21 for x
y = 5(21) - 19
y = 105 - 19
y = 86

so when x = 21, y = 86

6 0

3 years ago

Read 2 more answers

malfutka [58]

Related sides the the same ratio so if I have a square with side length 10 and a similar one with side length of 5 the ratio is 1/2 when going from big to small or 2/1 when going small to big. This is true for all sides. This allows you to find missing sides using proportions.

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3 years ago

The problems in this lesson review basic arithmetic skills.

gladu [14]

Answer:

false

Step-by-step explanation:

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3 years ago

Look at the math picture and answer the question correctly.

Ostrovityanka [42]

The answer for this problem is B

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3 years ago