If fx=1-x, which value is equivalent to |f(i)|

Select the graph of the solution. click until the correct graph appears. |x| = 3

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

Which of the following is the maximum value of the equation y=-x^2+2x+5 a. 5 b. 6 c. 2. d. 1