Answer:

Step-by-step explanation:
Given:
Focus point = (-5, -4)
Vertex point = (-5, -3)
We need to find the equation for the parabola.
Solution:
Since the x-coordinates of the vertex and focus are the same,
so this is a regular vertical parabola, where the x part is squared. Since the vertex is above the focus, this is a right-side down parabola and p is negative.
The vertex of this parabola is at (h, k) and the focus is at (h, k + p). So, directrix is y = k - p.
Substitute y = -4 and k = -3.



So the standard form of the parabola is written as.

Substitute vertex (h, k) = (-5, -3) and p = -1 in the above standard form of the parabola.
So the standard form of the parabola is written as.


Therefore, equation for the parabola with focus at (-5,-4) and vertex at (-5,-3)

Answer:
$52.5 saved. And he paid $297.50
Step-by-step explanation:
First finding the amount of money of the 15% discount
350.00 × .15 = $52.5
Then the the original price minus the dicount
350.00 - 52.50 = $297.50
Based on the terms of the invoice, the gross amount on the invoice and the date of payment, the cash discount is $19 and the net amount paid is $931.
<h3 /><h3>What is the cash discount?</h3>
The terms of the invoice are such that if the person pays within 10 days they get a 3% discount. If they pay in 15 days, they get a 2% discount.
The person paid on the 22nd after buying on the 8th so they qualify for the 2% for paying within 15 days.
The cash discount is:
= 2% x 950
= $19
The net amount paid is:
= 950 - 19
= $931
Find out more on cash discounts at brainly.com/question/14883253
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