Answer:
1 foot
Step-by-step explanation:
1 1/2 = 3/2
2/3*3/2 = 1

is a quadratic function, so its graph is a parabola.
Notice that the coefficient of x is 0, this always means that the axis of symmetry is the y-axis.
That is, the vertex of the parabola is in the y-axis, so the x-coordinate of the vertex is 0.
for x=0, y=-1. So the vertex is (0, -1)
The coefficient of

is negative. This means that the parabola opens downwards, so the vertex is a maximum.
Answer: (0, -1) , maximum (none of the choices)
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Step-by-step explanation:
Answer:
incompleted question
Step-by-step explanation:
......?
Answer:
A
Step-by-step explanation:
We have the expression 
We want to find the value when k is -3. So, substitute -3 for k and evaluate:

Multiply:

Subtract:

Add:

Therefore, our answer is A.