$[(69$ AND $75$ PLEASE $)]$

SECTION $1\mathrm{.}2$ EXERCISES

For the following exercises, each set of parametric equations represents a line. Without eliminating the paramoter, find the slope of each line.

For the following exercises, determine the slope of the tangent line, then find the equation of the tangent line at the given value of the parameter.

$69.x=t+\frac{1}{t},y=t-\frac{1}{t},t=1$

For the following exercises, find all points on the curve that have the given slon$-$

For the following exercises, write the equation of the tangent line in Cartesian coordinates for the given parameter $t.$

$75.x=e^{\sqrt[\phantom{2}]{1}},y=1-ln{t}^2,t=1$