2 years ago

Identify the domain of the function shown in the graph.

Mathematics

1 answer:

STALIN [3.7K]2 years ago

6 0

Answer:

[2, 6].

Step-by-step explanation:

Notice that there is a red line (graph) only for [2, 6]. Thus, the domain of this function is [2, 6].

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2 years ago

For the following system, if you isolated x in the first equation to use the substitution method, what expression would you subs

alekssr [168]

Answer:

$x=2y+6$

Step-by-step explanation:

So we have the system:

$-x+2y=-6\\3x+y=8$

If we isolate the x-variable in the first equation:

$-x+2y=-6$

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Divide both sides by -1:

$x=2y+6$

Therefore, we would substitute the above into the second equation:

$3x+y=8\\3(2y+6)+y=8$

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Further notes:

To solve for the system, distribute:

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Simplify:

$7y+18=8$

Subtract:

$7y=-10$

Divide:

$y=-10/7\approx-1.4286$

Now, substitute this value back into the isolated equation:

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Ostrovityanka [42]

$\displaystyle\\\sum_{n=1}^7(4n+2)$

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