Answer:

Step-by-step explanation:
Rewrite the quadratic using the method of completing the square:

From this form it is immediately clear that the vertex of the parabola is at x=1 and its y-intercept at -6.
C because adjacent angles share a common line as do angles 2 and 4.
Hope this helps :)
Answer:
y = 
Step-by-step explanation:
given that y varies inversely with x then the equation relating them is
y =
← k is the constant of variation
To find k use the condition x = 2 when y = 11
k = yx = 11 × 2 = 22
y =
← equation of variation
Answer:
c
Step-by-step explanation:
When you simplify the expression you get 38. Hope this helps.
Answer = 38.