Which of the following exponential functions goes through the points (1, 12) and (2, 36)? f(x) = 4(3)−x f(x) = 3(4)−x f(x) = 3(4)x f(x) = 4(3)x

1 year agoRight off the bat, lets look at the points. Do they go up or down?

1 year agoup

1 year agoSo we can eliminate \(f(x) = 4(3)^{−x}\) and \(f(x) = 3(4)^{−x}\)

1 year agoyeah

1 year agoTo check which one is right we can substitute each point into the equations (If you dont have access to a graphing calculator) Ex. (To check for answer choice D) \(f(x)=4(3)^x=>~~12=4(3)^1\) and \(36=4(3)^2\) If you do it should look something like this https://www.desmos.com/calculator/xvcyxstsha

1 year agoohh okay

1 year agohm

1 year agonow what?

1 year agoDo can you use graphing calculators?

1 year agono i can't

1 year ago\(\color{#0cbb34}{\text{Originally Posted by}}\) @dude To check which one is right we can substitute each point into the equations (If you dont have access to a graphing calculator) Ex. (To check for answer choice D) \(f(x)=4(3)^x=>~~12=4(3)^1\) and \(36=4(3)^2\) \(\color{#0cbb34}{\text{End of Quote}}\) Then let's solve for these \(12=4(3)^1\) \(36=4(3)^2\)

1 year agoim sorry i have to go now thanks for everything you've helped with ill be on later bye!

1 year agoAlright

1 year ago@dude hey could you help?

1 year agonvm i think my answer is D thanks for everything though!

1 year ago