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3 years ago

F(0)=2, f(2)=4, linear equation?

2 answers:

7 0

If you separate those into points (0,2) and (2,4) then figure out the slope by using the equation y2-y1 divided by x2-x1, you'll get 4-2 over 2-0 which gives you 2/2 or 1. You found the slope so you can plug that into the slope-intercept equation y-y1=m(x-x1). For you, it'd be y-2=1(x-0), you end up with the equation y=x+2.

Gelneren [198K]3 years ago

5 0

Could be, but not necessarily.

You have two points on the graph: (0, 2) and (2, 4) .

Yes, there's a straight line that could go through those two points. Y = x + 2 .

But there are a million other graphs that could go through the same two points.
You could draw ellipses, parabolas, circles, exponentials etc. that all go through
them. So when you only know two points on the graph, you can't really tell what
the equation has to be, or whether or not it's linear.

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A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45

Lapatulllka [165]

The train will pass the jogger in 36 seconds.

Length of train = 120m

Speed of train = 45kmph

Distance by which the jogger is ahead of the engine of the train = 240 m

Speed of jogger = 9 kmph

To pass the jogger, the train will have to cover the length of the train and the distance by which the jogger is ahead of the engine of train.

Hence,

Distance = 120 + 240 = 360m

As,

Time = Distance/Speed

Relative speed of train w.r.t jogger = 45 - 9 = 36 kmph = 10 m/s

Hence,

Time = 360/10 = 36 seconds.

To learn more about train, here:-

brainly.com/question/21218609

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5 0

1 year ago

Anyone know how to do this?

lara [203]

Area of the rectangle ==> 9x13 =117 cm²

Area of the right triangle ==> 11x(5)/2 =55/2 cm²

Total area = 117 + 55/2 = 289/2 = 144.5 cm²

8 0

3 years ago

Zach is having a birthday party at an amusement park. Tickets cost $28 each, but Zach's mom has a coupon for half-off. Both of Z

evablogger [386]

Answer:

A) $140

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Simplify the following: 2x3 - 2x2 - 4x / (over)

Marina86 [1]

$\frac{2x^3-2x^2-4x}{3x^3-12x}$

$\frac{2x.(x^2-x-2)}{3x.(x^2-4}$

$\frac{2}{3}.\frac{x^2-x-2}{x^2-4}$

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3 years ago

Choose the function that shows the correct transformation of the quadratic function shifted eight units to the left and one unit

Hitman42 [59]

Answer:

Option 3 is correct.

Step-by-step explanation:

Given the functions we have to select the correct transformation of the quadratic function shifted eight units to the left and one unit down.

As we know, to create a new function to apply vertical shift up we have to add the number of shift to that function or vertical shift down we have to subtract that from the given function.

Similarly, to create a new function to apply horizontal shift left we have to add the number of shift to that function of x or shift right we have to subtract that from the given function.

If we have to transform the quadratic function shift one unit down then we have to subtract 1 from the function.

And If we have to transform the quadratic function shift eight units to the left we have to add the shift to x.

Hence, the new function becomes, $f(x)=(x+8)^2-1$

Option 3 is correct.

7 0

3 years ago