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NeTakaya
3 years ago
13

The black line is the graph of y=x. Which of these equations could represent the blue line?

Mathematics
2 answers:
Solnce55 [7]3 years ago
7 0

Here we can see that the blue line cuts exactly half way through the angle that the black line makes with x axis

That is all the x values are halved

Which implies all the x value of the black line are divided by 2 to form the points on the blue line

so that give us the function

y=\frac{1}{2} x

irakobra [83]3 years ago
3 0

Answer:

Option D.

Step-by-step explanation:

It is given that black line is the graph of y=x.

We need to find the equation of blue line.

Both lines passes through (0,0) it means y is directly proportional to x.

y\propto x

y=kx

where k is constant of proportionality.

From the given graph it is clear that the black line is steeper than the blue line. It mean k<1.

If k is a very small number then the line is equivalent to x-axis. So, k≠0.001.

It means the possible value of k is 1/2. So the equation of blue line is

y=\dfrac{1}{2}x

Therefore, the correct option is D.

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