Complete each sentence. The vertex of the graph of f(x) = 0.25|x – 3| is Choose... . The graph opens Choose... .

Question

Options for choose #1

(0, 0.75) 

(0.75, 0) 

(0, 3) 

(3, 0)  

Options for choose #2

downward

upward

Answer 1

(3,0) is when f(x) =0 = 0.25(3-3) = 0. that's the minimum point, the vertex, or the intersection of two lines, g(x)=0.25(x-3) and h(x) = 0.25(3-x). Just looking at the parts of those lines above the vertex is f(x), a V shaped graph.