Questions: 5. In the space provided, label each function as even, odd, or neither.
a) f(x) = x^4 - 5
b) f(x) = x^4 + x
c) f(x) = -2x^3
7. Sketch a graph of the following functions
a) f(x) = x - 2
b) f(x) = sqrt(x) + 1
c) f(x) = (x + 2)^2 - 3
d) f(x) = -x
8. Write the function whose graph is the graph of f(x) = sqrt(x), but is
a) shifted left 3
b) shifted down 5
c) reflected over the y-axis
d) shifted right 1
Transcript text: 5. In the space provided, label each function as even, odd, or neither.
a) $f(x)=x^{4}-5$ $\qquad$ b) $f(x)=x^{4}+x$ $\qquad$ c) $f(x)=-2 x^{3}$
7. Sketch a graph of the following functions
a) $f(x)=|x-2|$
b) $f(x)=\sqrt{x}+1$
c) $f(x)=(x+2)^{2}-3$
d) $f(x)=-|x|$
8. Write the function whose graph is the graph of $f(x)=\sqrt{x}$, but is
a) shifted left 3
b) shifted down 5
c) reflected over the $y$-axis
d) shifted right 1
Solution
Solution Steps
Step 1: Analyzing function a)
To determine if \(f(x) = x^4 - 5\) is even, odd, or neither, we evaluate \(f(-x)\):
\(f(-x) = (-x)^4 - 5 = x^4 - 5 = f(x)\).
Since \(f(-x) = f(x)\), the function is even.
Step 2: Analyzing function b)
For \(f(x) = x^4 + x\), we have:
\(f(-x) = (-x)^4 + (-x) = x^4 - x\).
Since \(f(-x)\) is not equal to \(f(x)\) or \(-f(x)\), the function is neither even nor odd.
Step 3: Analyzing function c)
For \(f(x) = -2x^3\), we have:
\(f(-x) = -2(-x)^3 = -2(-x^3) = 2x^3 = -(-2x^3) = -f(x)\).
Since \(f(-x) = -f(x)\), the function is odd.