Answer:
A
Step-by-step explanation:
At the vertex, the quadratic term in this notation must be zero, i.e., the (x-1) part. This happens for x=1. So you can already rule out answers C and D.
Now fill in x=-2 in both remaining answers and see what happens.
For A: y = -2(-2 - 1)² + 3 = -15
For B: y = (-2 - 1)² + 3 = 12
That eliminates B and leaves A.
Here is an example f(x)X squared minus 6x plus five
The slope is rise/run
rise=up and down
run=left and right
the rise is 0
the run is inifnity
so 0/inifnity=0
the slope is 0
Answer:
the weight of one bar is 12.75
Step-by-step explanation:
divide the total weight by the total number of bars
