Cubic and Cube Root Functions and Equations — Test
Question 6 • Algebra II
Which is the graph of the function f of x is equal to x cubed plus x squared plus x plus 1 ?
Answer
A
Image with description On a coordinate plane, a curve increases through the point negative 1 comma negative 2, has a point of inflection at 0 comma negative 1, and increases through the point 1 comma 2.
B
Image with description On a coordinate plane, a curve increases through the point 0 comma negative 5, has a point of inflection at 1.5 comma 0.5, and increases through the point 2 comma 1.
C
Image with description On a coordinate plane, a curve increases through the point 1 comma negative 2, has a point of inflection at 1.5 comma negative 1.5, and increases through the point 2.5 comma 0.
D
Image with description On a coordinate plane, a curve increases through the point negative 2 comma negative 5, has a point of inflection at negative 0.5 comma 0.5, and increases through the point 2 comma 5.