To evaluate f(-6), we substitute -6 for x in the function f(x) = -1/2x + 5.
Step 1: Plug in x = -6 into the function: f(-6) = -1/2(-6) + 5
Step 2: Simplify the expression: f(-6) = 3 + 5
Step 3: Add the numbers: f(-6) = 8
Answer: f(-6) = 8
Frequently asked questions (FAQs)
Question: What is the vertex of the graph of the quadratic function f(x) = -2x^2 + 4x + 5?
+
What is the value of x in the equation 3(x+5)=18?
+
Question: "Graph the exponential function y = 2^x over the domain [-2, 2] using the increments of 0.5. How many positive x-values does the graph have?"