Help asap plz 23. Find the center and radius of the circle whose equation is given below:
(x + 5)2 + 1 - 3)2 = 36
(5, -3); 6
(-5, 3); 6
(-5,3); 18
(5, -3); 18

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )