Question

HELPPPP what do I do exactly ?

Answer 1

First, you draw a line x = y (so points 1, 1 2, 2 etc.)

Then, you draw a parabola x^2 + 2x + 1 (so points 0, 1 1, 4 -1, 0 -2, 1 -3, 4)

Then you take it all, flip it all around upside down and shove it up your bu.tt.

Hope this helps :)

Answer 2

Explanation:

Note that the squaring function and the square root function are inverses of one another. If we make a list of perfect squares, we get {1, 4, 9, 16, 25, ...}. Then the square roots of these numbers are {1, 2, 3, 4, 5, ... }.

Continue making a table of values to plot. The first row has x=0, y=0; this reflects that the sqrt of 0 is 0.

Fill the first (x-) column with perfect squares and the second (y-) column with the square roots of these perfect squares:

x y

0 0

1 1

4 2

9 3

and so on.

Now plot the following on the graph: (1,1), (4,2), (9,3), ....

Starting at (0,0) and moving to the right (indicating increases in x), plot these points. (You'll soon run out of room.) Draw a smooth curve from (0,0) to connect these points. The result is a graph of the square root function.

The domain of this function is "the set of all real numbers ≥0" and the range is the same: "the set of all real numbers ≥0"