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Pepsi [2]
3 years ago
15

Write an equation in the form y =mx+b ​

Mathematics
2 answers:
Lapatulllka [165]3 years ago
6 0

Answer:

y = 20x

Step-by-step explanation:

y =mx+b

The y intercept is zero because it goes through the point (0,0)

That means b is zero

We need to find the slope

m = (y2-y1)/(x2-x1)

    = (40-20)/(2-1)

    = 20/1

m = 20

The equation is

y = 20x+0

y = 20x

denis23 [38]3 years ago
6 0

We need to write an equation in the slope-intercept form : y = mx + b

We can already determine that the value for be would be 0, since the graph is starting at 0.

Our equation currently looks like this:

y = mx + 0

To find the slope, or m, we must determine how much the graph is changing by. In other words, what is the rate of change for the graph.

We could see that for everyone 1 minute, there is 20 gallons of water, which means that this would be our m value

Your equation should look like this:

y = 20x + 0

Answer:

y = 20x + 0

or

y = 20x

<em>(They're both the same thing)</em>

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2 years ago
Question 1 of 12, Step 1 of 1
stellarik [79]

Answer:

325 and 375 mph

Step-by-step explanation:

Given :

Distance between plane A and B = 2800

Recall :

Distance = speed * time

Let speed of A = v1

Speed of B = v2

v1 = v2 + 50

Time taken = 4 hours

Distance = speed * time

Total distance = 2800

2800 = v1 * 4 + v2 * 4

2800 = (4v1) + (4v2)

2800 = 4(v2+50) + 4v2

2800 = 4v2 + 200 + 4v2

2800 = 8v2 + 200

2800 - 200 = 8v2

2600 = 8v2

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8 0
3 years ago
If angle 1 = 6n + 1 and angle 4 = 4n + 19, what is the angle 2?
kobusy [5.1K]
Angles 1 and 4 are alternate angles and thus have the same measurement. You will set their equations equal to each other and solve for the variable. 

6n + 1 = 4n + 19

Subtract 1 and 4n from both sides to get variables on one side and constants on the other. 

6n - 4n = 19 - 1

Combine like terms and solve for n.

2n = 18
n = 18 / 2
n = 9

Angles 1 and 2 are congruent as labeled in the graph. 

So angle 2 is also 6n + 1

Plug in for 9 for n

6(9) + 1
54 + 1
55

Option C is your answer. 


7 0
3 years ago
Graph the following lines and write the equation in slope-intercept form. With y intercept of −3 and an x intercept of −4.5.
makvit [3.9K]

Answer:

y=-\frac{2}{3}x-3

Step-by-step explanation:

To write the equation of a line we need 2 points. We know:

  • If the y-intercept of the line is -3 then the point is (0,-3).
  • If the x-intercept of the line is -4.5 then the point is (-4.5,0).

Using these two point, we will find the slope and then substitute it into the point slope form y-y_1=m(x-x_1) with a point.

Slope: m=\frac{0--3}{-4.5-0}=\frac{0+3}{-4.5}=\frac{3}{-4.5}=-0.6667

This decimal is -2/3. We will now substitute -2/3 and (0,-3) into the point slope form.

y--3=-\frac{2}{3}(x-0)\\y+3=-\frac{2}{3}(x)\\y+3=-\frac{2}{3}x\\y=-\frac{2}{3}x-3


6 0
3 years ago
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