Which ordered pairs lie on the graph of the exponential function f(x)=3^2x+5

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer