# How do you find the slope of the secant lines of #f(x) = sqrtx# at P(4,2)?

##### 1 Answer

Mar 16, 2017

See below

#### Explanation:

# = ((sqrt(4+h)-2))/h ((sqrt(4+h)+2))/((sqrt(4+h) +2))#

# = ((4+h)-4)/(h(sqrt(4+h)+2)#

# = 1/((sqrt(4+h)+2)#