What did I do wrong on the number of votes one of them is wrong or a couple are wrong pleaasseeee tell me!!!!

Write an equation of the line that passes through the given point and is perpendicular to the graph of the given equation. Pleas

Anna71 [15]

Answer:

$y = \frac{1}{3}x + 4$

Step-by-step explanation:

First, to figure out the equation of a line you must find the slope then plug in the coordinates.

In order to find the slope of the equation, you know that it is perpendicular to the equation y = -3x + 7.

Perpendicular slopes are basically reciprocals with opposite signs; you flip the number and give it the opposite symbol.

For example, the perpendicular slope of 2 would -1/2, because flipping the fraction 2/1 is 1/2 and the opposite sign of + would be -.

Therefore, the perpendicular slope of -3 would be 1/3, be 3/1 flipped upside down is 1/3 and the opposite sign of - is +.

Then you plug in the slope into the equation of a line along with the coordinate.

A line is y = mx + b

Since you found the slope, m = 1/3

They also give you the coordinate (3,5), meaning when x = 3, the y =5.

You plug everything into the equation to solve for b:

5 = (1/3)(3) + b

b = 5 - (1/3 * 3) = 5 - 1 = 4

Since you have values for m and b, the equation can now be constructed as

y = 1/3x + 4

6 0

2 years ago

Would you rather Run at 100 mph or fly at ten mph?

Sonbull [250]

I would rather run a 100 mph

7 0

3 years ago

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Faces: <br> Edges: <br> Vertices:

sesenic [268]

Answer:

Below.

Step-by-step explanation:

This is a square based pyramid.

There are:

5 Faces (one on the base and 4 side faces)

8 edges. ( 4 on base and 4 on side)

5 vertices (4 on the base and one on the top)

5 0

1 year ago

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The sand pit for the long jump has a width of 2.7 meters and a length of 9.54 meters. Just in case it rains, the principal wants

sveta [45]

Answer:

A = 25.758 m²

Step-by-step explanation:

Width of the sand pit, b = 2.7 m

Length of the sand pit, l = 9.54 m

We want to cover the sand pit with a piece of plastic. We need to find how many square meters of plastic will be needed to cover the sand pit. It is equal to the area of sand pit. It is in the shape of rectangle. Its area is given by :

A = l × b

A = 2.7 × 9.54

A = 25.758 m²

So, 25.758 m² of plastic will be needed to cover the sand pit.

8 0

3 years ago

Write the function for the graph

Kruka [31]

Answer:

Option A is correct.

The function for the given graph is;

$f(x)=2\cdot 4^x$

Step-by-step explanation:

An exponential function is in the form of $y =ab^x$ ......[1] where a is the initial value and b≠ 0 , b >1 .

Given two points as shown in figure i.e,

let A = (0, 2) and B = (1,8)

Substitute these points in equation [1] we have;

For A = (0,2)

$2 = ab^0$ = a

⇒ a = 2

and

for B = (1, 8)

$8 = ab^1$

or

$ab = 8$

Substitute the value of a=2 in above equation to solve for b;

2b = 8

divide both sides by 2 we get;

b = 4

Then, the function for the graph is, y= $f(x)=2\cdot 4^x$

3 0

2 years ago

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