What is the slope-intercept form equation of the line that passes through (1, 3) and (3, 7)?

4+6x-3x^3 in standard form with explanations because i don’t understand

The equation of a circle is (x + 4)2 + (y + 6)2 = 16. determine the length of the radius. 10 4 16 8 my flower basket delivers flowers within a 20 mile radius of their store. if this area is represented graphically, with my flower basket located at (5, 2), what is the equation that represents the delivery area? (x - 2)2 + (y - 5)2 = 20 (x - 5)2 + (y - 2)2 = 20 (x + 5)2 + (y + 2)2 = 400 (x - 5)2 + (y - 2)2 = 400

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.