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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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Use the figure below to complete the following problem. 2 + 3 = 90 120 180

sineoko [7]

This equals 180.
1 and 3 are corresponding angles which means they are the same. 1+2=180 therefore 2+3= 180

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3 years ago

Read 2 more answers

1\tfrac{2}{5} \div \frac{8}{9} 1 5/2 ÷ 9/8

Alexandra [31]

Answer:

Step-by-step explanation:

What you wrote below the top line and the bottom line are not the same thing.

I think you really want the second line, but one can't be sure.

(1*2 + 5)/2 div (9/8)

7/2 // 9/8

7/2 * 8*9

7*8/18 = 56/18 = 28/9

If you really do want the top line (the latex) it is different.

1 2/5 div (8/9) Is there such a thing as tfrac? I didn't know this but there is.

(1*5 + 2)5 // (8/9)

7/5 // 8/9 Invert the bottom fraction and multiply

7/5 * 9 / 8

63 / 40

1 23/40

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3 years ago

Write an equation for a polynomial with all the following features a. The degree is 5 b. The polynomial has 4 terms c. The graph

ladessa [460]

Answer:

f(x) = ax^5 + bx^3 + cx^2 + 12.

Step-by-step explanation:

the degree is 5 so we will have a term like:

ax^5

it crosses the vertical axis at y = 12 so we will have a constant term equal to 12

the polynomial has 4 terms, and we already have two so we can make up two more but the exponent must be between 1 and 4

f(x) = ax^5 + bx^3 + cx^2 + 12.

it has 4 terms, f(0) = 12, then it intersects the y-axis at y = 12, and the maximum exponent is 5, then the degree of f(x) is 5

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3 years ago

Jeff is traveling from his home in Salem at a constant rate of 50 mph. He has already traveled 20 miles. His sister Jennifer is

leonid [27]

Answer

Find out the how long will it take Jennifer to catch Jeff.

To prove

Formula

$Speed = \frac{Distance}{Time}$

let us assume that the distance be denoted by d .

let us assume that the time be denoted by t .

As given

Jeff is traveling from his home in Salem at a constant rate of 50 mph.

He has already traveled 20 miles .

As put the values in the formula

$50 = \frac{d + 20}{t}$

50t - 20 = d

(As jeff already travelled 20 miles distance.)

As given

His sister Jennifer is making the same trip but at a constant rate of 60 mph and has only traveled 5 miles.

than put the value in the formula

$60 = \frac{d +5}{t}$

than the equation becomes

60t -5 = d

Than the two equation becomes

50t - 20 = d and 60t -5 = d

compare both the equation

50t - 20 = 60t -5

50t - 60t = 20 -5

- 10t = 15

$t = \frac{-15}{10}$

t = -1.5

(As time cannot be negative.)

t = 1.5 hours

1.5 hours will it take Jennifer to catch Jeff.

Option (A) is correct .

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3 years ago

Fill in the answer that completes the square. Then write the trinomial in factored form. x^2-28x+?

grin007 [14]

?=196
The trinomial $x^{2}$ -28x+196 is equal to (x-14)^2 (factored version)

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3 years ago