skecth graph Q4

Question

1. Skecth the graph y=sec x ; 0degrees is less than and equal to x less than and equal to 360 degrees. 2. Skecth the graph of y= 6 + 4x - 2x^2 2.1. Is the graph above in Q2 continuous or discontinuous? 3. Skecth the graph of y=lnx 4. Sketch and indicate the area enclosed by the graph y=3 sin x, the x-axis ; x=0 and x= (pie/2). Also show the representative strip to be used to calculate the area. Calculate using integration the magnitude of the area indicated.

Answer 1

(1).

The function is y = sec(x) and its graph in the interval [0, 360] is

Answer 2

(2).

The function is y = 6 + 4x - 2x2 and its graph is

(2.1).

The polynomial functions are continues at every point in their domains.

The function y = 6 + 4x - 2x2  is continues at every point in their domains.

Answer 3

(3).

The function y = ln(x) and its graph is

Answer 4

(4).

The function y = 3 sin(x) and its graph is

.