Answer: The exact points are (0,4) and (4,3)
Step-by-step explanation: f(x) is the same thing as using the variable y. You can plug in numbers for the x variable and evaluate. For example, you can use the numbers 0 and 4 for x. 0.25 times 0+4 =4. (0,4) and -0.25 times 4+4=3. (4,3)