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Match the graph

Can someone help me how to figure this out ImageUploadedByStudent Room1495185462.949034.jpg


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Reply 1
Avatar for MattB00
MattB00
2
B and D are exponential graphs. The equation for D would be something like y = a^x (where a is a positive constant) and the equation for B would be y = a^-x. If you think about it, you should be able to work out why those graphs have this shape. EDIT: I thought you were asking about those two graphs because you had circled them. If you are asking for help with the questions on the sheet then i), as you correctly identified, is E. For ii) we have the equation of a line of gradient and y-intercept at the origin. Which graph does that look like?
(edited 6 years ago)
Reply 2
Avatar for z_o_e
z_o_e
OP
11
Original post by MattB00
B and D are exponential graphs. The equation for D would be something like y = a^x (where a is a positive constant) and the equation for B would be y = a^-x. If you think about it, you should be able to work out why those graphs have this shape


They're reciprocal graphs that's why


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Reply 3
Avatar for MattB00
MattB00
2
Original post by z_o_e
They're reciprocal graphs that's why


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No, they're not reciprocals. They're exponentials. If they were reciprocals, there would be a vertical asymptote as well as a horizontal one
Reply 4
Avatar for MattB00
MattB00
2
Original post by z_o_e
Can someone help me how to figure this out ImageUploadedByStudent Room1495185462.949034.jpg


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What specifically are you asking us to help you with? All of the graphs or just B and D?
Reply 5
Avatar for Jirga
Jirga
2
i = E
ii = C

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