3 years ago

Select the correct answer. Identify the system of linear equations from the tables of values given below.

Mathematics

1 answer:

Maksim231197 [3]3 years ago

6 0

Answer:

C. y=1/2x+2

y=1/2x+1

Step-by-step explanation:

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-6y+15= -27 what is y?

stealth61 [152]

Answer:

y=7

Step-by-step explanation:

-6y= -27-15

-6y= -42

y=7

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2 years ago

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The arnold family arrived at the beach at 10:30 a.m. The spent 3 3/4 hours there. what time did they leave the beach?

Dennis_Churaev [7]

2:15 was the time they left the beach

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3 years ago

2.1 & 2.2 Assessment: Vertex & Standard Form of Quadratic Functions

Brums [2.3K]

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

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