Which graph best represents the function f(x) = 1(1.5)x?
Would you like me to walk you through how to graph this so you can see?
yes please
First let me ask, can you look closely at the equation to be graphed and confirm that this f(x) = 1(1.5)x and not this f(x) = 1(1.5)^x Is the equation?
no, my mistake, the equation is f(x)= 1(1.5)^x
forgot to add that port, my bad x.x
part*
Alright very cool. Let's make a table of values to draw our own graph so we can see what it looks like. I would like to point out that f(x) = y This is how we start a table of values. |dw:1405109301692:dw| It is meant to give us x's and y's we can turn into points on a graph that when put together make (x, y) points/coordinates we can then plot.
So we need to start with some values of x. I always like to start with x = -1, 0, and 1 so that the calculations will be easier.
If we plug in -1 for x, x = -1 We will get this, f(-1) = 1(1.5)^-1 |dw:1405109461279:dw|
Sorry about that. When we plug in -1 for x we get f(-1) = 1(1.5)^-1 Which is 1/ 1(1.5)^1 1/ 1(1.5) 1/ 1.5 1/3 f(-1) = 1/3 And if we plug in 0 for x, we get, f(0) = 1(1.5)^0 Anything raised to the 0 power is 1 Examples include 10^1 = 1 2^1 = 1 2342^1 = 1 So f(0) = 1(1) or 1|dw:1405110082278:dw|
We can now say we have the points (-1, 1/3) and (0, 1) to plot on a graph. |dw:1405110218127:dw|
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