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3 years ago

What equation represents the line shown on the graphs?

1 answer:

5 0

Slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept. This makes the equation of our line y = 2x+0 or y = 2x.

You might be interested in

The some of the roots of 2x 2 + 8x - 3 = 0 is

vekshin1

$x= \frac{-b \pm \sqrt{ b^{2} -4ac} }{2a}$ ; where a = 2, b = 8 and c = -3
$x= \frac{-8 \pm \sqrt{ 8^{2} -4 \times 2 \times -3} }{2 \times 2} \\ x= \frac{-8 \pm \sqrt{ 64 +24} }{4} \\ x= \frac{-8 \pm \sqrt{ 88} }{4} \\ x= \frac{-8 \pm 2\sqrt{ 22} }{4} \\ x= \frac{-4 + \sqrt{ 22} }{2}\ or\ \frac{-4 - \sqrt{ 22} }{2}$
The sum of the roots is $\frac{-4 + \sqrt{ 22} }{2}+ \frac{-4 - \sqrt{ 22} }{2} \\ = \frac{-8}{2} = -4$
OR
simply sum of roots = -b/a = -8/2 = -4

8 0

4 years ago

How do you find the volume of an l block

raketka [301]

You multiply the height, width, and length together to find the volume.

6 0

4 years ago

The sum of three numbers is 855. One of the numbers, x, is 50% more than the sum of the other two numbers. What is the value of

Snowcat [4.5K]

Answer:

The value of x = 513

Step-by-step explanation:

Let x, y, and z be the three numbers

Given

$x+y+z=855$

Assuming x be the number which is 50% more than the sum of the other two numbers.

i.e.

(150)% of (y+z) = 1.5(y+z)

y + z = x/1.5

As we know that

$x + y + z = 855$

substituting y + z = x / 1.5 in the equation

$x+\frac{x}{1.5}=855$

Multiply both sides by 1.5

$x\cdot \:1.5+\frac{x}{1.5}\cdot \:1.5=855\cdot \:1.5$

$1.5x+x=1282.5$

$2.5x=1282.5$

Divide both sides by 2.5

$\frac{2.5x}{2.5}=\frac{1282.5}{2.5}$

$x = 513$

Therefore, the value of x = 513

8 0

3 years ago

In 1992, the population of Seoul. South Korea was 17,334,000. In 1995, the population of Seoul was 19,065,000. Find the average

gizmo_the_mogwai [7]

577,000, there is an average change of 577,000 people per year.

To find the average rate of change of the population of people per year, we first need to find the population change per any amount of time, and then divide by how much time that is (in this case, three years). We can find the population change by <u>subtracting </u>the values 17,334,000 and 19,065,000. Subtracting them, we get a change of 1,731,000 in three years. Now, to find the average rate of change of the population in people per year, we divide by three, which gives us our answer of 577,000 people, on average, per year.

3 0

3 years ago

A certain forest covers an area of 4000km^2. Suppose that each year this area decreases by 3.5%. What will the area be after 9 y

kaheart [24]

Simply will say
4000(3.5%) = 140 km^2
So each year will decrease by 140km^2
To find till 9th years it will be
4000-(140*9)=2740 km^2
Area after 9 years is 2740 km^2

7 0

3 years ago