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4 years ago

Which is a graph of the equation y = 2x- 4

Mathematics

2 answers:

algol134 years ago

7 0

The first one because the slope is 2/1 and y-intercept is -4

yanalaym [24]4 years ago

5 0

Answer:

Option A is the correct choice.

Step-by-step explanation:

Please find the attachment.

We have been given an equation $y=2x-4$ and we are asked to find the graph that represents our given equation.

We can see that our given equation is slope-intercept form of equation $y=mx+b$ , where,

m = Slope of line,

b = The y-intercept or initial value.

So, the graph for our given equation will have a slope of 2 and it will y-axis at y=-4.

Upon looking at our given options we can see that graph represented by option A has a slope of 2.

$Slope=\frac{y_2-y_1}{x_2-x_1}$

Upon substituting coordinates of points (2,0) and (3,3) in slope formula we will get,

$Slope=\frac{2-0}{3-2}$

$Slope=\frac{2}{1}$

$Slope=2$

Therefore, the graph represented by option A is the correct choice.

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Maya is building a sandbox that is 36 inches wide. The length is four times the width. What is the perimeter of the sandbox? Sho

Alex17521 [72]

Answer: I believe the answer is 360 in.

Step-by-step explanation:

You can use Khan Academy

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3 years ago

Finding perimeter and area.

Aleks04 [339]

Answer:

1. P = 14cm; A = 10cm^2

2. P = 24cm; A = 12cm^2

3. P = 32cm; A = 63cm^2

4. P = 36cm; A = 80cm^2

5. P = 32cm; A = 60cm^2

6. P = 36cm; A = 81cm^2

7. P = 26cm: A = 30cm^2

8. P = 28cm; A = 49cm^2

9. P = 26cm: A = 42cm^2

Step-by-step explanation:

Formula to find perimeter for a rectangle:

length + width + length + width

l + w + l + w

Formula to find area for a rectangle:

length × width

l × w

Perimeter (P): 5 + 2 + 5 + 2 = 14

Area (A): 5 × 2 = 10

P: 6 + 2 + 6 + 2 = 24

A: 6 × 2 = 12

P: 7 + 9 + 7 + 9 = 32

A: 7 × 9 = 63

P: 10 + 8 + 10 + 8 = 36

A: 10 × 8 = 80

P: 10 + 6 + 10 + 6 = 32

A: 10 × 6 = 60

P: 9 + 9 + 9 + 9 = 36

A: 9 × 9 = 81

P: 10 + 3 + 10 + 3 = 26

A: 10 × 3 = 30

P: 7 + 7 + 7 + 7 = 28

A: 7 × 7 = 49

P: 6 + 7 + 6 + 7 = 26

A: 6 × 7 = 42

Area will always have its units squared (cm^2) because the formula requires we multiply the numbers and therefore the units: cm × cm = cm^2

4 0

3 years ago

If f(x)=<br> =<br> (3+x)<br> (x-3)<br> what is f(a + 2)?

Butoxors [25]

(3+a+2) (a+2-3)
(5+a) (a-1)
5a-5+a^2-a
Rearrange and combine like terms
a^2 +4a-5

3 0

2 years ago

Find three consecutive integers whose sum is 35.

DIA [1.3K]

5, 10, and 20. (This is your answer.)

5 + 10 + 20 = 35.

These numbers are also consecutive, meaning each comes after the other on a number-line.

Hope this helps!

6 0

3 years ago

Rahzel wants to determine how much gasoline he and his wife use in a month.He calculated that he used 78 1/3 gallons of gas last

attashe74 [19]

52. Rahzel wants to determine how much gasoline they had every month => He used 78 1/3 gallons of gas monthly => his wife used 41 3/8 gallons of gas last month How much is to total of gas that they both used. First let’s convert this fraction to decimal => 78 1/3 = 78.33 => 41 3/8 = 41.38 Now, let’s start adding. => 78.33 + 41.38 = 119.71 this is already rounded to the nearest hundredths.

7 0

3 years ago