Answer:
y=6
Step-by-step explanation:
Differentiate the equation
dy/dx=2x-8
Find the value of x in equation form
2x-8=0
x=8/2=4
Now x=4 is the line of symmetry or the parabola of the quadratic equation.
Plug back x=4 into the equation to find the turning point(minimum value)
y=(4)²-8(4)+22
y=16-32+22
y=6
Answer:
y=-1/3x-7/3
Step-by-step explanation:
y-y1=m(x-x1)
m=-1/3
y-(-2)=-1/3(x-(-1))
y+2=-1/3(x+1)
y=-1/3(x+1)-2
y=-1/3x-1/3-2
y=-1/3x-1/3-6/3
y=-1/3x-7/3
Answer:
Step-by-step explanation:
Much depends on how accurate an estimate you want.
If "to the nearest hundred" would be acceptable (it's a lot of work),
Round off 542817 to 542820 and 27398 to 2740. Then you'd want to subtract 2740 from 542820. (Again, it's a lot of work.)
Otherwise round off to the nearest thousand: 543000 - 27000.
Or go to the nearest ten thousand: 540,000 - 30,000 = 510,000 (estimate)
Answer:
$17
Step-by-step explanation:
We are assuming that snow shovels for 10 families means 10 shovel in total. If the manager is offering $2 discount per shovel, and there are ten shovels, then that is a 20 dollar discount. 85, the cost after discount, plus 20 is 105. 105/10=10.5. Your family is offering two pay for two shovels, so the total for you would come to $21, but there is the $2 discount, so subtract 4 dollars, and you have $17.
The original points/point c would be (-8,11) bc the y stays the same and the x changes from its original to (in this case) negative to positive
(positive to negative/negative to positive for either the x or y)
hope this helps
