17 less than twice a number is equal to the number. what is the number?

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Big boi and travis scott are performing at the super bowl. travis scott is 62 years younger than twice big boi’s age. the sum of their ages is 70 years old. use b to represent big boi’s age. write and solve an equation.

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined