Write the equation of the line through the indicated point with the indicated slope. write the final answer in the form y equals mx plus b. mequalsnegative 4; (4,minus3)

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

Find the value of x for which the lines are parallel.

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.