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Mama L [17]
2 years ago
6

Given the function f(x) = 2x+4 and the domain: {-1,0,1},determine the range

Mathematics
1 answer:
Svetlanka [38]2 years ago
6 0

Answer:

f(x) = 2x + 4 domains {-1, 0, 1}

range {2, 4, 6}

(please mark brain if this helps and is correct)

Step-by-step explanation:

to solve f(x) to find the range you would want to input all the domain numbers in the equation f(x) to get the range of all the numbers you need

step 1: take the first domain number and input it into your equation where x is

ex: 2x + 4   [2(-1) + 4] = -2 + 4 = 2

step 2: add the second domain number and input it into your equation where x is

ex: 2x + 4   [2(0) + 4] = 0 + 4 = 4

step 3: add the last domain number and input it into your equation where x is

ex: 2x + 4   [2(1) + 4] = 2 + 4 = 6

Now we have determined what the range is

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Answer:

1. x = 12

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Step-by-step explanation:

1. We are given the equation of x as \sqrt{x - 3} + x = 9 and we have to find the extraneous solution of the equation.

Now, \sqrt{x - 3} + x = 9 ............. (1)

⇒ \sqrt{x - 3} = 9 - x

Squaring both sides we get,

⇒ x - 3 = 81 - 18x + x²

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⇒ x² - 12x - 7x + 84 = 0

⇒ (x - 12)(x - 7) = 0

⇒ x = 12 or 7.

Now, putting x = 12 in the equation (1) we get,

\sqrt{12 - 3} + 12 \neq   9

Again, putting x = 7 in the equation (1) we get,

\sqrt{7 - 3} + 7 = 9

Therefore, x = 12 is an extraneous solution of this equation. (Answer)

2. The volume of a cube with side lengths a ft. is given to be 108 ft³.

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3 0
3 years ago
Mirele needs to buy fencing to completely surround her backyard pool. How much fencing should she buy? A pool has a length of 31
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Answer:

93.18 feet

Step-by-step explanation:

Given:

Length of backyard pool = 31.74 feet

Height of backyard pool = 14.85 feet

To find: Length of fencing bought by Mirele

Solution:

To find the length of fencing bought by Mirele, use the formula for the perimeter of a rectangular pool.

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5 0
3 years ago
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2 years ago
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1 year ago
How are the perimeters of two similar figures related?
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