- #1
haribol
- 52
- 0
In the attached picture, the equation for the limit I think is:
[tex]\lim_{\Delta x \rightarrow 0} \\\ \frac{f(x+ \Delta x) - f(x)}{\Delta x}[/tex]
When [tex]\Delta x[/tex] approaches 0, why wouldn't the [tex]f(x+ \Delta x)[/tex] approach [tex]f(x)[/tex]? Because as the point Q approaches P, then wouldn't the y value of point Q also approach that of P? Or am I not understanding the concept?
[tex]\lim_{\Delta x \rightarrow 0} \\\ \frac{f(x+ \Delta x) - f(x)}{\Delta x}[/tex]
When [tex]\Delta x[/tex] approaches 0, why wouldn't the [tex]f(x+ \Delta x)[/tex] approach [tex]f(x)[/tex]? Because as the point Q approaches P, then wouldn't the y value of point Q also approach that of P? Or am I not understanding the concept?