What is the range of #f(x) = 2x^2 + 1#?

1 Answer
Jul 29, 2018

Answer:

#y in[1,oo)#

Explanation:

#"We require the vertex and whether it is a max/min"#
#"turning point"#

#y=2x^2+1#

#"is symmetrical about the y-axis and the coordinates of"#
#"it's vertex are"#

#"vertex "=(0,1)#

#"since "a>0" then it has a minimum turning point "uuu#

#"range is "y in[1,oo)#
graph{2x^2+1 [-10, 10, -5, 5]}