Question

What do you need to enter on a graphing utility to graph a point on a 45 degree angle with radius (distance from the origin) being equal to 7? Hint: You can select "edit graph on DESMOS" in the graph below and practice your solutions on the graphing utility 5190 -120 60 150° 180° 5 210 330 240° 5 2703_300 odit graph on desmos Check Answer

Answer 1

The ordered pairs, called polar coordinates, are in the form (r,θ), with r being the number of units from the origin or pole (if r>0), like a radius of a circle, and θ being the angle (in degrees or radians) formed by the ray on the positive x–axis (polar axis), going counter-clockwise. If r<0, the point is units (like a radius) in the opposite direction (across the origin or pole) of the angle θ. If θ<0, you go clockwise with the angle, starting with the positive x–axis.

So, required coordinates are (7,45°) or (7,π/4) because π/4 = 45°