Thread: Find the function

Find the function of the form . In the graph, m = 3 and q = 27.

m is the x-intercept and q is a point on the graph (-1, 27)

So what is ?

Originally Posted by n8thatsme

Find the function of the form . In the graph, m = 3 and q = 27.

m is the x-intercept and q is a point on the graph (-1, 27)

So what is ?

there is no need for all this weird formating. it only serves to confuse people. do you mean

where and are constants?

note that the x-intercept is the x-value when y = 0, so that

...........................(1)

also, means, when x = -1, y = 27, so that

..........................(2)

there seems to be some info missing, because this system is inconsistent

Originally Posted by n8thatsme

Find the function of the form . In the graph, m = 3 and q = 27.

m is the x-intercept and q is a point on the graph (-1, 27)

So what is ?

ok, that's better.

note that you have

f(3) = 0

and

f(-1) = 27

thus you have a pair of simultaneous equations with two unknowns. you can solve for a and c

I edited the formatting a little bit. I have a graph but I don't know how to show it on here. The graph is the reflection of a^x. But what I gave is my entire problem.