If the point P(4,2) likes on the curve y=radical x. If Q is the point (x,radicalx), use you calculator for find the slope of the secant line PQ for the value x=3.99
What do I do?
Hello, ToXic01!
$\displaystyle \text{The point }P(4,2)\text{ lies on the curve }y\:=\:\sqrt{x}$
$\displaystyle \text{If }Q\text{ is the point }(x,\sqrt{x})\text{, use your calculator to find}$
$\displaystyle \text{the slope of the secant line }PQ\text{ for the value }x=3.99$
Did you read the problem at all?
You are asked to fnd the slope of the line through $\displaystyle P(4,2)$ and $\displaystyle Q(3.99,\sqrt{3.99})$
How hard is that?