Question

Use graphical addition to sketch the graph of f + g.

Answer 1

can you view the pic?

Answer 2

Yes.

Answer 3

o ok good
it wont let me

Answer 4

Look at the start point of both of the graphs where they both cross (where x=0). They both have y value of 2 right? So if we add them together, do you agree that f+g will have y value of 4 for x=0?

Answer 5

yea...

Answer 6

So just pick a few points and do the same thing. Good points to choose would be the maxima and minima of the graphs. Are you able to continue now?

Answer 7

but do i just do that for every point?????

Answer 8

Not for every point no, but after a few points you should get a general idea of what the graph of f+g will look like. Notice the question says sketch the graph. It doesn't need to be 100% accurate, but it should have about the right shape.

Answer 9

ok... i think i get it thx

Answer 10

so what would i do for a non intercept coordinate
do i just add the y coordinate or both the x and y

Answer 11

Just add the y co-ordinates for both of the graphs.

Answer 12

ok thx