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Use the method of adding y-coordinates to graph the function.

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Use the method of adding y-coordinates to graph the function.

f (x) = sin x + cos x
asked Jan 29, 2015 in PRECALCULUS by anonymous

1 Answer

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Step 1 :

The function is .

Consider the composite functions as and .

Make a table for computing several points :

0
0 1 0.707 0 1 0.707 0
1 0 0.707 1 0 0.707 1

1 1 0 1 1 0 1
Point on the graph of f (0, 1)  

 

answered Jan 29, 2015 by lilly Expert

Contd.......

Step 2 :

Graph the functions and on the same coordinate system.

(1) Draw the coordinate plane.

(2) plot the points.

(3) connect the points with a smooth curve.

The graph is :

image

Solution :

The graph is :

image

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