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2 years ago

Range f (x)=3x-12. Domain is (-2,2)

1 answer:

6 0

<span>Interpretation of question: Find the range, given the f(x) = 3x - 12 and the domain is from (-2,2).
</span>
Since the function is linear, it will always be increasing from left to right.

We can get the lower and upper bounds of our function's range by plugging in the lower and upper bounds of the domain into the function.

1) Plug -2 into the function.
3(-2) - 12 = -18

2) Plug 2 into the function.
3(2) - 12 = -6

The range is (-18, -6).

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Answer:o

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Jocelyn is knitting a blanket she knits 1/4 foot of the scarf in 3/4 of an hour how fast is jocelyn’s knitting speed in feet per

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Her speed per hour is 1/3 of a foot

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3 years ago

(50 points) A diameter of a circle has endpoints P(-10, -2) and Q(4,6)

Gala2k [10]

Answer:

Step-by-step explanation:

The center of the circle is the midpoint of the two end points of the diameter.

Formula

Center = (x2 + x1)/2 , (y2 + y1)/2

Givens

x2 = 4

x1 = - 10

y2 = 6

y1 = - 2

Solution

Center = (4 - 10)/2, (6 - 2)/2

Center = -6/2 , 4/2

Center = - 3 , 2

So far what you have is

(x+3)^2 + (y - 2)^2 = r^2

Now you have to find the radius.

You can use either of the endpoints to find the radius.

find the distance from (4,6) to (-3,2)

r^2 = ( (x2 - x1)^2 + (y2 - y1)^2 )

x2 = 4

x1 = -3

y2 = 6

y1 = 2

r^2 = ( (4 - -3)^2 + (6 - 2)^2 )

r^2 = ( (7)^2 + 4^2)

r^2 = ( 49 + 16)

r^2 = 65

Ultimate formula is

(x+3)^2 + (y - 2)^2 = 65

The radius is √65 = 8.06

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2 years ago

Brandon earns a rebate each month on his meals and movie tickets. He earns $0.50 for each movie ticket and $2 for each meal. Las

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C. 7

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2 years ago

The ratio of money in Terry's bank account to Faye's bank account was 3:7. Terry then put £220 in his account and Faye withdrew

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Answer:

£910

Step-by-step explanation:

let 3x and 7x be the initial amounts in their accounts, then after alterations

Terry has 3x + 220

Faye has 7x - 300

After these changes the amounts are equal, hence

7x - 300 = 3x + 220 ( subtract 3x from both sides )

4x - 300 = 220 ( add 300 to both sides )

4x = 520 ( divide both sides by 4 )

x = 130

Faye initially had 7 × £130 = £910 in her account

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