How do you find the range of #y=4x²-5x+2#? Algebra Expressions, Equations, and Functions Domain and Range of a Function 1 Answer Sonnhard Jun 10, 2018 #y>=7/16# Explanation: We get #y'(x)=8x-5# #y''(x)=8# So we get #y(5/8)=4*25/64-25/8+2=7/16# Since we have for #x=5/8# a minimum, so we get #y>=7/16# Answer link Related questions How do you determine if (-1, 4), (2, 8), (-1, 5) is a function? What is the domain for #f(x)=2x-4#? What is the domain and range for (3,1), (1,-4), and (2, 8)? What is the domain and range of a linear function? Is domain the independent or dependent variable? How do you find the domain and range of a function in interval notation? How do you find domain and range of a rational function? How do you find domain and range of a quadratic function? How do you determine the domain and range of a function? What is Domain and Range of a Function? See all questions in Domain and Range of a Function Impact of this question 2668 views around the world You can reuse this answer Creative Commons License