Answer:
The standard equation is y=ax^2+bx+k and the vertex way is y=a(x-h)(x-h)+x
so the coordinate for x is -b/2a, for your problem a=-4 b=-16 so the coordinate for x is -(-16)/(2*(-4))=-2. Now you have to replace x=-2 in your equation y=-4(-2)^2-16(-2)-11= 5.
The vertex is (-2, 5)
Step-by-step explanation:
Answer:
may you give a phot im not capable of understanding that
Step-by-step explanation:
Answer:
20-4x
Step-by-step explanation:
x = every school day
Answer:
p = 11.75 - 2 = 9.75
Explanation:
2 + 9.75 = 11.75, which was the original length of the plank, therefore:
11.75 - 2 = the correct and current length of the plank