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3 years ago

What is the range of the function y = 3x + 2 when the domain is {-3, 0, 2}?

Mathematics

1 answer:

Firlakuza [10]3 years ago

8 0

Answer:

{-7, 2, 8}

Step-by-step explanation:

We see that the domain is limited to three x-values: -3, 0 and 2. To find the range (which is the set of all y-values) we just need to plug-in these x-values and find the corresponding y-values.

So our equation is:

y = 3x + 2

Then we substitute for the x-values:

y = 3(-3) + 2

y = -9 + 2

y = -7

y = 3(0) + 2

y = 0 + 2

y = 2

y = 3(2) + 2

y = 6 + 2

y = 8

So our range would be {-7, 2, 8}.

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

Segment BD is an altitude of triangle ABC. Find the area of the triangle.

Sever21 [200]

Answer: The correct option is A, i.e., 7.5.

Explanation:

It is given that ABC is a triangle and BD is an altitude.

Since BD is an altitude, therefore the height of the triangle is BD and the base of the triangle is AC.

The distance formula to find the distance between two points is,

$D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

First, we find BD, where B(-1,4) and D(2,4).

$BD=\sqrt{(2+1)^2+(4-4)^2}=\sqrt{9} =3$

So, the height of the triangle is 3.

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$AC=\sqrt{(6-1)^2+(2-2)^2}=\sqrt{25} =5$

So, the base of the triangle is 5.

The formula to find the area of a triangle is,

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3 years ago

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The problem is confusing because the words (and question marks) are not consistently used. Let's do this:

... (cooler price) + (tax on the cooler) = (total bill)

The cooler price is 100% of the cooler price.

The tax on the cooler is 6% of the cooler price.

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... (100% × (cooler price)) + (6% × (cooler price)) = (total bill)

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== == == == == == == ==

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3 years ago

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Taya2010 [7]

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3 years ago

What is the range of the function y = 3x + 2 when the domain is {-3, 0, 2}?​

What is the range of the function y = 3x + 2 when the domain is {-3, 0, 2}?