Answer:
maximum value at (- 1, 6 )
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
• If a > 0 then minimum value
• If a < 0 then maximum value
y = - (x + 1)² + 6
with (h, k) = (- 1, 6 ) and a = - 1
Thus vertex = (- 1, 6 ) and is a maximum
45
F(-4). F(x) = 2x^2 - x + 9
y = -1/4 x+4 is blue
y = 1/2 x+4 is green
y = 3x is red
y = -1/2x is purple
y = 3 is black