- #1
Physicist3
- 104
- 0
Hi,
This is probably really simple but it seems to be confusing me and I was wondering if someone could clarify if I am correct as to the use of f(x) please.
If you have an equation, say y=6x2+3x+4, does this equation then become f(x) so that y=f(x) and f(x) = 6x2+3x+4? Also, if you put a number into the brackets, does this mean that you replace the x's with this number? E.g. if the above equation became y=f(2), would this then mean that y = 6 * 22+3*2+4 and y=f(2) would therefore = 34?
Thanks
This is probably really simple but it seems to be confusing me and I was wondering if someone could clarify if I am correct as to the use of f(x) please.
If you have an equation, say y=6x2+3x+4, does this equation then become f(x) so that y=f(x) and f(x) = 6x2+3x+4? Also, if you put a number into the brackets, does this mean that you replace the x's with this number? E.g. if the above equation became y=f(2), would this then mean that y = 6 * 22+3*2+4 and y=f(2) would therefore = 34?
Thanks