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Algebra 18 Online
OpenStudy (anonymous):

what is this????????

OpenStudy (anonymous):

what is this????????

OpenStudy (anonymous):

seriously, this is hard

OpenStudy (anonymous):

i think it's a

OpenStudy (a_clan):

substitute x with 1,2,3,4 ..... You will get the required graph

OpenStudy (anonymous):

is it a?

OpenStudy (anonymous):

Just like the other one said, substitute x with 1 2 3 and 4 and you'll get some answers that will match a graph

OpenStudy (a_clan):

This is simple hit and trial, and one of the easiest problems. You can look at the figure and tell the correct graph simply by putting x=1 in the equation, if you try.

OpenStudy (anonymous):

so it's d then?

OpenStudy (anonymous):

-4^x. X =1. Y = -4. X =2. Y = -.....

OpenStudy (anonymous):

is it d?

OpenStudy (a_clan):

Could you please explain how you arrived at option d as answer.

OpenStudy (anonymous):

idk... it just looked like what you were explaining.......

OpenStudy (a_clan):

The curve of a graph is obtained by joining points (co-ordinates) on the XY plane. And these points are obtained with the help of an equation, which in this case is y= -4 ^ x. When we put numerical values in place of x i.e. 1,2,3,4 ... , we get a corresponding numerical value for y. Here if we put x=1, then we get -4 as value of y. In the given graphs, you can see which curve passes through the point (x=1,y=-4). This will be your answer.

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