Answer:

Step-by-step explanation:
use the form
to find the values of a, b, and c.

consider the vertex form of a parabola

substitute the values of a and b into the formula 

simplify the right side.
find the value of e using the formula 

Answer:

Step-by-step explanation:

Answer:
it would be a 4% sales tax
Step-by-step explanation:
6.24
-6.00
.24/6 (amount of dollars divided by the total tax)
.04 or 4%
Y = 1/2x - 3. Slope here is 1/2. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So the perpendicular line will have a slope of -2.
y = mx + b
slope(m) = -2
(1,-1)...x = 1 and y = -1
now we sub and find b, the y int
-1 = -2(1) + b
-1 = -2 + b
-1 + 2 = b
1 = b
so ur perpendicular equation is : y = -2x + 1
20% is alcohol and 80% is water hope this helped