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Mathematics 19 Online
OpenStudy (anonymous):

.

OpenStudy (anonymous):

I can give you the answer.

OpenStudy (anonymous):

The first one will be y = -x +5 which can be either c or d

OpenStudy (anonymous):

both of them are correct

OpenStudy (popitree):

it is A

OpenStudy (popitree):

x+y=5

OpenStudy (popitree):

look parallel mean same slope = -1, so equation is y=-x+k now this line should pass through 4,1.. so put them in equation to get k

OpenStudy (anonymous):

The second one is c

OpenStudy (anonymous):

Yeah, @popitree got the first one right.

OpenStudy (anonymous):

I made a mistake.

OpenStudy (anonymous):

The second one is c

OpenStudy (popitree):

perpendicular, so slope1xslope2= -1, so, slope 2 =2/3, y=2/3x+k, now solve for k yeah C is correct one

OpenStudy (anonymous):

Well (f+g)(x) = f(x) + g(x) = -2x + 8 +3x = x +8. Now substitute x.

OpenStudy (anonymous):

Ok substitute (-1) for x, we got (f+g)(-1) = (-1) + 8 = 7

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

I guessed its A im not sure if im right

OpenStudy (anonymous):

d

OpenStudy (anonymous):

wait a is right

OpenStudy (anonymous):

are you sure a is right?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

No need. I am very happy to help

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