Find the radius and the coordinates of the center of the circle: (x+6)^2+(y-1)^2=25

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

What is not true about kl and mn? what is mn? (show your work)

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0