Multiply first then round
A. you are given that f(1)=5 therefore f(1) cannot also equal 1 unless it is a different equation.
Answer should be 3 I’m pretty sure
2.5 = 2 5/10 as a Mixed fraction
To get a improper fraction, multiply the whole number with the denominator, and then add the numerator to the answer, giving the numerator (keep the denominator number)
2 x 10 = 20
20 + 5 = 25
25/10 is your answer
hope this helps
The graph is not proportional because it doesn’t go though the origin aka (0,0)
