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a_sh-v [17]
4 years ago
11

a line contains the points (-3 -2) and (7,2) determine whether the slope of this line is positive or negative

Mathematics
1 answer:
xxTIMURxx [149]4 years ago
5 0

Answer:

Positive. From those two points the line would slant upwards. Going left to right it would be going up, therefore it's a positive slope

Step-by-step explanation:

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the time it takes to fly from los angeles to new york varies inversely as the speed of the plane. if the trip takes 6 hours at 9
natima [27]
Inverse variation means y=k/x  (direct variation is y=kx) so we can use the info given to find the constant k

y=k/x

6=k/900

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y=5400/x  or more accurately for this problem

t(v)=5400/v  then:

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almond37 [142]

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Pls help ill give u brainliest
Monica [59]

Answer:

Answers:

Rate of change = -5

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Step-by-step explanation:

Each time x increases by 2 (eg from x = 1 to x = 3), the value of y drops by 10 (eg from y = 20 to y = 10)

Therefore the slope is...

slope = rise/run = (change in y)/(change in x) = -10/2 = -5

slope = -5

So each time x increases by 1, y will decrease by 5

Flip things around: each time x decreases by 1, y will increase by 5

So the pair (x,y) = (1,20) shown in row 1 of the table leads to (0,25) based on the rule above. Another way to see this is to plug m = -5, x = 1 and y = 20 into y = mx+b and solve for b to get b = 25

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Simplify the following expression completely using distribution and combining like terms
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\huge \boxed{\mathbb{QUESTION} \downarrow}

  • Simplify ⇨ 9 + 5 (4x - 4)

\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}

\sf \: 9 + 5 ( 4 x - 4 )

Use the distributive property to multiply 5 by 4x-4.

\sf \: 9+20x-20

Subtract 20 from 9 to get -11.

\sf \: -11+20x

Putting it in standard form...(positive number in the 1st)

\boxed{\boxed{\bf \: 20x-11}}

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Answer:

Gym: A=100 P=41

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Locker room: A=75 P= 37

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3 years ago
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