Question

Which functions have a vertex with a x-value of O?. Select three options.

f(x) = |x|
f(x) = \x{ + 3
f(x) = 5x + 31
f(x) = [x] - 6
f(x) = 5x + 31 - 6

Answer 1

Explanation:

1) f(x) = |x| has its vertex at (0, 0), so the x-value is 0.

2) Cannot figure out what you meant by \x{ + 3.

3) f(x) = 5x + 31 has a straight line graph, no vertex.

4) [x] - 6 does not have a vertex, or at least not a well-defined one like |x|

5) Unsure of what you meant by 5x + 31 - 6. Did you mean 5x + 25? This does not have a vertex.