Question

which variable must be repeated on the x axis?​

Answer 1

Answer:

The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).

Explanation:

In any data set, the independent or X-variable is the one that was chosen or manipulated by the experimenter. For example, time is always an independent variable (and goes on the x-axis) because the experimenter is choosing which time points to take measurements at—1 second intervals, 5 minute intervals, etc.

Answer 2

$❥{\huge{\underline{\small{\mathbb{\pink{YOUR \ CORRECT \ ANSWER \ }}}}}}$

°°° Solution °°°

Bx 2 + y 2 = 41

The △OAB is a right angled triangle, right angled at O.

We know that every inscribed angle that subtends a diameter is a right angle.

In the above case the circle circumscribing △OAB will have AB as its diameter.

If A=(h,0) and B=(0,k)

Then the circumcentre is

C = 2h , 2k = (x,y).

Therefore 2x=h and 2y=k

Now OA=∣h∣=a and OB=∣k∣=b

Since a 2 +b 2 = 1

Hence h 2+k 2=1(2x)

2 +(2y) 2=1

Or 4(x 2 +y 2 )=1

Or x 2 +y 2

= 41