In my book it skips over this , so I'm not really sure about it .
For the first, would I simply construct a table eg of x values and then y values ? and then sketch that plot ? Or is there a general trend ?
Similarly, for number 2, would I do the same but also asign numbers for k ?
Sketching Exponents C2 - Quick Query Watch
- Thread Starter
- 25-03-2011 21:03
- 25-03-2011 21:24
Assuming you know what y=3^x looks like then y=2(3^x) is a vertical stretch of scale factor 2 i.e. the y-coords are double and the x-coords unchanged. So this graph will pass through (0,2) instead of (0,1). It's general shape is similar to y=3^x, i.e. the y-values increase rapidly as x increases and the y-values decrease rapidly as x decreases. The x-axis is an asymptote.