The graph of the function f(x) = x^2+ 3x – 10 is shown.
a) The vertex is the maximum or minimum value?
b) The axis of symmetry is x =
c) The domain is
d) The range is
e) The function is increasing or decreasing over (-5,infinity).
f) The x-intercepts are at (,) and ( , ).

sample answer: you can determine whether each element of the domain is paired with exactly one element of the range. for example, if given a graph, you could use the vertical line test; if a vertical line intersects the graph more than once, then the relation that the graph represents is not a function.

i have not got your picture clearly so see it once again

the value of x is 28.2