complete the square
f(x) = -x^2 - 3x - 2
= -[x^2 + 3x + .........] - 2
= -[ x^2 + 3x) + 9/4 - 9/4 ] - 2
= -[(x + 3/2)^2 - 9/4] - 2
= -(x + 3/2)^2 + 9/4 - 8/4
= -(x+3/2)^2 + 1/4
IF you are studying this topic, you now MUST be able to answer the question.
Find the coordinates of th vertex and write the equation of the axis of symmetry given the function f(x)=-x^2-3x-2.Is the vertex a maximum or a minimum?
1 answer