Q1(a)-How to draw the graph of the function A=x^2.
Q1(b)-From the graph, How to find the value of A,when
(i)x=2 (ii) x=3 (iii)x=4
http://www.wolframalpha.com/input/?i=plot+y%3Dx%5E2+for+x+%3D+0..4
To draw the graph of the function A=x^2, you can follow these steps:
1. Choose a range of x-values that you want to plot. Let's say from -5 to 5 for this example.
2. Calculate the corresponding values of A by substituting the chosen x-values into the function A=x^2. For each x-value, square it to get the value of A.
3. Plot the points (x, A) on a graph paper. For example, when x = -5, A = 25, so plot the point (-5, 25). Connect these points smoothly to form a curve.
Now, to find the value of A when x=2, x=3, and x=4 from the graph:
(i) Locate the point where x=2 on the graph. Then, find the corresponding value of A at that point. It can be read from the graph by identifying the y-coordinate at x=2.
(ii) Similarly, locate the point where x=3 on the graph, and find the corresponding value of A.
(iii) Repeat the same process for x=4.
By following these steps, you can draw the graph of the function A=x^2 and find the values of A for specific x-values.