Week 6 Assessment



Week 6 Assessment

f(x) = x2 + 2x - 9

B) Maximum; 

Reason: Coefficient of the x^2 term is +, therefore we have maximum

The vertex is on the LOS, Line of Symmetry, which is

x = -b/2a

x = -2/2

x = -1

Vertex at (-1, f(-1)) = (-1, -10)

f(x) = -x2 - 2x - 6

B) Minimum; 

Reason: Coefficient of the x^2 term is -, therefore we have minimum

The vertex is on the LOS, Line of Symmetry, which is

x = -b/2a

x = -(-2)/2(-1)

x = -1

Vertex at (-1, f(-1)) = (-1, -5)

f(x) = -3x2 + 6x

B) Minimum; 

Reason: Coefficient of the x^2 term is -, therefore we have minimum

The vertex is ...