SOLUTION: Given the function f(x) = 9x - 9 a. Find the rate of change between the two stated values for x: 8 to 9. b. Find the equation of a secant line containing the given points: (8,f(8

Algebra ->  Functions -> SOLUTION: Given the function f(x) = 9x - 9 a. Find the rate of change between the two stated values for x: 8 to 9. b. Find the equation of a secant line containing the given points: (8,f(8      Log On


   

Question 608154: Given the function f(x) = 9x - 9
a. Find the rate of change between the two stated values for x: 8 to 9.
b. Find the equation of a secant line containing the given points: (8,f(8)) and (9,f(9)) I could use the answer as soon as you can.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
a. Rate of change is 9 (slope is constant)

b. f(x) = 9x - 9. If it were any other function, e.g. f(x) = x^2, we would have to find the slope between the two points, find y-intercept, etc. but here, we don't have to do that.