
Step-by-step explanation:
The vertex form of the equation for a parabola is given by

where (h, k) are the coordinates of the parabola's vertex. Since the vertex is at (1, -6), we can write the equation as

Also, since the parabola passes through (4, -7), we can use this to find the value for a:

or

Therefore, the equation of the parabola is

Answer:
b
Step-by-step explanation:
mark me as brainliest
Answer:
71
Step-by-step explanation:
Divide 71 by 7 and you get 10 and 1 leftover. Divide 71 by 4 and you get 17 with 3 leftover.
Tax is 5% of the original price. So if i multiply by 20 i can easily find the original 100%.
20 x $43 = $860
You can check if by doing 860 x 0.05 = $43
Answer:
$70.62
Step-by-step explanation:
110 x 0.6=66
66x0.07 + 66=$70.62