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sertanlavr [38]
3 years ago
14

Which equation represents the line that is perpendicular to y= 3/4x + 1 and passes through (-5, 11)

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
6 0

The equation which represents the perpendicular line is y = -\frac{4}{3}  x  +  \frac{13}{3}  ⇒ A

Step-by-step explanation:

Let us revise the relation between the slopes of the perpendicular lines

  • The product of the slopes of the perpendicular lines is -1
  • That means if the slope of one of them is m, then the slope of the other is
  • reciprocal the slope of a line and change its sign to find the slope of the perpendicular line to it

The form of the linear equation is y = m x + b, where m is the slope of the line and b is the y-intercept (y at x = 0)

∵ The equation of the given line is y = \frac{3}{4} x + 1

- Compare it with form of the equation above

∴ m =  \frac{3}{4}  ⇒ slope of the given line

- To find the slope of the perpendicular line reciprocal it and

  change its sign

∴ The slope of the perpendicular line = -\frac{4}{3}

Let us write the equation of the perpendicular line

∵ y = m x + b

∴ y =  -\frac{4}{3} x + b

- To find b substitute x and y in the equation by the coordinates

  of a point on the line

∵ The perpendicular line passes through the point (-5 , 11)

∴ x = -5 and y = 11

- Substitute it in the equation

∴ 11 =   -\frac{4}{3} (-5) + b

∴ 11 = \frac{20}{3} + b

- Subtract  \frac{20}{3}  from both sides

∴ \frac{13}{3} = b

∴ y =  -\frac{4}{3}  x  +  \frac{13}{3}

The equation which represents the perpendicular line is

y = -\frac{4}{3}  x  +  \frac{13}{3}

Learn more:

You can learn ore about the perpendicular lines in brainly.com/question/2601054

#LearnwithBrainly

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Answer:

Relative frequency is 7.41% or 0.0741

Step-by-step explanation:

Given

The Attached Table

Required

Calculate the relative frequency of the class with lower limit 27

Relative Frequency is calculated by dividing individual frequency by the total frequency

Mathematically,

Relative\ Frequency = \frac{Individual\ Frequency}{Total\ Frequency}

The total frequency of the given data is 6+8+4+2+5+2

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Hence;

Relative\ Frequency = \frac{Individual\ Frequency}{Total\ Frequency} becomes

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You may also leave your answer in percentage form

Relative\ Frequency = 0.0741 * 100\%

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Step-by-step explanation:

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Answer:

1. Right: pointing downwards

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Step-by-step explanation:

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