$~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{op ens~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] ~\dotfill$

$\begin{cases} h=1\\ k=-9 \end{cases}\implies y=a(x-1)^2 - 9\qquad \textit{we also know that} \begin{cases} x=2\\ y=-7 \end{cases} \\\\\\ -7=a(2-1)^2-9\implies 2=a(1)^2\implies 2=a \\\\[-0.35em] ~\dotfill\\\\ ~\hfill {\Large \begin{array}{llll} y=2(x-1)^2 -9 \end{array}} ~\hfill$

6 0

1 year ago

Al bought a fishing pole for 60% off its original price of $97. If the tax was 4% (of the sale price), how much did Al pay for t

choli [55]

Answer:

$40.35

Step-by-step explanation:

60% off of the fishing poles price means Al payed for 40% of the original price. (So, you multiply 97 by .40 - And you get 38.8)
For the tax you multiply 38.8 times .04- You should get 1.552
Lastly, add 38.8 and 1.522 together.

8 0

3 years ago

Apply the distributive property to create an equivalent expression.<br> (6m -7) x 4

Nikolay [14]

Hi there! the answer is...

24m - 28 is equivalent to (6m - 7) x 4

hope this helped! have a good one!

3 0

3 years ago

12v+10v+14=80 solve the equation​

12v+10v+14=80 solve the equation