Core 3- Functions

So, we know the very basic type of functions by now. Easiest example f(x)= x^2+3

Putting a number in is easy af f(3)= 3^2+3 = 12

For 2 functions e.g g(x)= x+5 and you wanna get values that make both equations have the same output, just put them equal to each other f(x)=g(x)

If ever asked to sketch a graph, use the calculator <3

A graph'll be made from a continuous function and it'll look like dis f(x)= 3x+2     -6<x<5    The f(x) is just gonna be a y

RANGES AND DOMAINS

So the range is all OUTPUTS and domains are all INPUTS. To find a range, draw the graph out and see what the line either tends towards or ends at. depends on the graph…