To find the tax rate when given the initial price of an object and the final tax value, you use the equation: $350 * X = $22.75 (where X is the sales tax rate). Then solve:
$22.75/$350 = .065
So the rate is 6.5%
Follow PEMDAS!
First E (exponent) so you'd do 2^2=4
Then S (subtract) so you'd do 3-4=-1
your answer is -1
Answer:

Step-by-step explanation:
Standard form of a parabola with a vertical axis of symmetry:





If p > 0, the parabola opens upwards, and if p < 0, the parabola opens downwards.
From inspection of the graph:
- Vertex = (3, -1)
- Directrix = y = -3
Therefore:
Use the Directrix equation to find p
⇒ y = (k - p)
⇒ -3 = -1 - p
⇒ p = 2
Therefore the equation of the conic section is:


Rearranging in standard form
:



