What is the rate of change of the following equation: y = 2x - 5

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

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

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75