What is the range of the function #f(x)=-4cos(2x - 3)#? Trigonometry Graphing Trigonometric Functions General Sinusoidal Graphs 1 Answer Zor Shekhtman Feb 10, 2015 The range is #[-4,4]#. Since #2x-3# can be any real number, the range of #-4cos(2x-3)# can be determined by expanding the range of #cos(x)# by a factor of #4#. Answer link Related questions What does sinusoidal mean? Given any sinusoidal equation, how do you identify the type of transformations that are made? How do you graph any sinusoidal graph? What does the coefficients A, B, C, and D to the graph #y=D \pm A \cos(B(x \pm C))#? What is the period, amplitude, and frequency for the graph #f(x) = 1 + 2 \sin(2(x + \pi))#? What is the period, amplitude, and frequency for #f(x)=3+3 cos (\frac{1}{2}(x-frac{\pi}{2}))#? How do you graph #y=2+3 \sin(2(x-1))#? How do you graph #y=2 cos(-x)+3#? How do you graph #y=3cos(4x)#? How do you graph #y=(cos2x)/2#? See all questions in General Sinusoidal Graphs Impact of this question 8956 views around the world You can reuse this answer Creative Commons License