For the function whose graph is shown, which is the correct formula for the function?

Mathematics

2 answers:

fiasKO [112]4 years ago

8 0

Answer:

Step-by-step explanation:

Try using simple numbers like 1 as x and then try with the different functions until it works

alexgriva [62]4 years ago

4 0

Answer:

y=-2x+3

Step-by-step explanation:

Here we are given a graph of line. We can see from the graph that the y intercept . i.e the distance of the the point at which it intersect y axis from (0,0) is 3.

Also we see that the line is making obtuse angle with the positive x axis . Hence tan of this angle will be negative or we can say that the slope of this line is negative

Now the equations in options are given in slope intercepts form

y=mx+c

where m is slope and c is y intercept

Hence in the given four options we see that only 3rd and 4th option has y intercept as 3

But the slope of 3rd is positive and that of 4th is negative . Hence our answer is 4th option

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A coordinate grid is placed over a map and every unit represents 1 mi. The point at (3, 8) represents the location of the baseba

alexira [117]

The distance between 2 points $( x_{1}, y_{1})$ and $( x_{2}, y_{2})$ on the coordinate plane is $\sqrt{(x_{2}-x_{1})^2-(y_{2}-y_{1})^2}$
So the distance between the given points is $\sqrt{(7-3)^2+(-2-8})^2}= \sqrt{4^2+(-10)^2}= \sqrt{16+100}= \sqrt{116}=10.8$
As every unit is 1 mile, so the distance should be 10.8*1=10.8miles.

Hope this helps.

3 0

4 years ago

If L is the midpoint of KM and KM =5x-6 and LM=2x+4 what is the value of x?

ella [17]

With these values x = 14.

In order to find this, we must note that LM will be half of KM (since L is the midpoint). Because we know this, we also know that we can multiply LM by 2 and set equal to KM.

2LM = KM

2(2x + 4) = 5x - 6

4x + 8 = 5x - 6

8 = x - 6

14 = x

7 0

4 years ago

Make z the subject of the formula:<br> X=3y+z

barxatty [35]

Subtract 3y from each side of the equation.

7 0

3 years ago