Precalc
posted by kelly on .
Let p(x,y) be a point on the graph of y= X^23
A) Express the distance from P to the point (1,2) as a function of x. Simplify completely.
B) Use your calculator to determine which value of xyields the smallest d.

d = √[(x1)^2 + (y2)^2]
= √[(x1)^2 + (x^232)^2]
= √(x^22x+1 + x^410x^2+25)
= √(x^49x^22x+26)