MATH
140 -- Intermediate Algebra -- Exercise Solutions
Section: 3.3
14.
Graph x - y = - 4 and write it using functional
notation
Answer: Solve for y to
obtain y = x + 4.
Then replace y with f(x) to obtain the correct functional notation
f(x) = x + 4.
16.
Graph y = 2x and write it using functional notation
Answer: Replace y with
f(x) to obtain the correct functional notation
f(x) = 2x.
18.
Graph x - 2y = - 8 and write it using functional
notation
Answer: Solve for y to
obtain 
.
Then replace y with f(x) to obtain the correct functional notation
20.
Graph 2x - 3y = 6 and write it using functional
notation
Answer: Solve for y to
obtain 
.
Then replace y with f(x) to obtain the correct functional notation
