Even and Odd Functions from Graph

Which one of the following functions is even?

• f(x) = x⁴ + x³
• g(x) = x⁴ + x²
• h(x) = x⁵ + x³
• k(x) = x³ + x

Which one of the following functions is odd?

• f(x) = 3x⁴ - 4x³
• g(x) = 5x⁴ + 3x²
• h(x) = 6x⁵ - x³
• k(x) = x⁶ + 8x²

Is the graph an even, odd, or neither function
                        f(x) = x² + 2

• Even 
• Odd
• Neither

Is the graph an even, odd, or neither function
                        f(x) = (x+4)² - 1

• Even
• Odd
• Neither

Is the graph an even, odd, or neither function
                        f(x) = x⁴ + x² 

• Even
• Odd
• Neither

Is the function even, odd, or neither?
 f(x)=5

• even
• odd
• neither

Which one of the following functions is even?

• f(x) = x⁴ + x³
• g(x) = x⁴ + x²
• h(x) = x⁵ + x³
• k(x) = x³ + x

Even, odd, or neither?

• Even
• Odd
• Neither
• Please explain this to me.

The function in the graph is:

• even
• odd
• neither even nor odd
• both even and odd

Which of the following is odd?
f(x) = -3x⁵ +2x
g(x) = 2x³ -7x
h(x) = 5x⁴ - 2

• f(x) + g(x)
• f(x) + h(x)
• g(x) + h(x)
• f(x) + g(x) + h(x)