The vertex of any equation in the form y = a(x-b)^2 + c is (b,c). Keeping that in mind, we figure out that:
The first one is (-9,-5)
The second one is (-5,-6)
The third one is (5,6)
The fourth one is (6,9)
The fifth one is (5,-9)
Answer:
The y intercept is 39 and the slope is 3/1
Step-by-step explanation:
The price of phone is stated, taking the price of the phone as p and the discount on sale as 20%
Answer:
0.848p
Step-by-step explanation:
Price of phone = p
Sales tax = 6%
Discount on sale = 20%
With a 20% discount, the discounted price of the phone will be :
100%p - 20%p = 80%p = 0.8p
The sales tax will increase the price thus ;
0.8p + 6% of 0.8p
0.8p + 0.06 * 0.8p
0.8p + 0.048p
The cost of the phone including tax becomes ; (0.8p + 0.048p) = 0.848p
You count up to 235 which then gives you 358
