If f(x) = –x2 + 3x + 5 and g(x) = x2 + 2x, which graph shows the graph of (f + g)(x)?
on a coordinate plane, a straight line with a negative slope crosses the y-axis at (0, 5) and crosses the x-axis at (1, 0).
on a coordinate plane, a parabola opens down. it goes through (negative 2, negative 4), has a vertex at (0, 5), and goes through (2, negative 2)
on a coordinate plane, a parabola opens up. it goes through (negative 3, 7), has a vertex at (negative 1, 2), and goes through (0, 5).
on a coordinate plane, a straight line with a positive slope crosses the x-axis at (negative 1, 0) and crosses the y-axis at (0, 5)