To graph the function f we plot the points x KX in a coordi

To graph the function f, we plot the points (x, KX)\' ) in a coordinate plane To O (x, 0) O (x, 2x) O (x, x -3) so the point (s. ) is on the graph of f. The height of the graph of f above the x-axis when x = 5 is X the table. f(x)-4 (x, y) -2,0 0.-4 3

Solution

To graph, f(x) = x² - 4, we plot the points (x, x²-4).The 1st answer is correct.

So, the point (5, 5² -4) or, (5, 21) is on the graph of f. The height of the graph of f above the X- Axis, when x = 5 is 21.

x	f(x) = (x2 -4)	(x,y)
-2	0	(-2,0)
-1	-3	(-1,-3)
0	-4	(0, -4)
1	-3	(1,-3)