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nataly862011 [7]
3 years ago
10

I really need help on all of them, I will give out brainliest to one answer and ten points to both

Mathematics
1 answer:
tangare [24]3 years ago
3 0

Answer:

1. 1/2, 2. 2, 3. 1/-3, 4. -2

Step-by-step explanation:

1) I know that the equation for slope is y2-y1/x2-x1. For number one I first found two points of the graph which is (0,3) and (2,4) (not sure if I see it correctly, its kind of blurry). I decided that (0,3) would be my y1 and x1 and (2,4) will be my y2 and x2. I later plugged the number in the equation and got 4-3/2-0 which the answer turns out to be 1/2.

2) For the rest of the questions it is kinda the same business as question 1. For question two I chose two points out of the table which wrer (-1, -12) and (1,-8) and plugged them into the equation and got -8-(-12)/1-(-1) which the answer turns out to be 2.

3) similar to question 2. The two points(2,-6) and (-4,-3) are given to you. so I plugged them in again and got -3-(-6)/-4-2 which the answer turns out to be 3/-6 into 1/-3.

4) Same with question 1 find two points of the graph. I chose (0,3) and (1,1) (again might not be accurate it's kind of blurry) I plugged them into the equation again and got 1-3/1-0 which equals -2.

Just always remember y2-y1/x2-x1=m is the equation for slope.

(m is the variable for slope)

Hoped this helped you : )

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3 years ago
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I need help on these both (it's 12 year old math) ​
dimulka [17.4K]

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The ratio of the number of emails sent by arianna to the number of email sent by her brother is 2 to 6 if arianna sent 150 text
avanturin [10]

Answer:

Step-by-step explanation:

First you need to use your information to set up a proportion.  (put your parts over the wholes and a variable in the blank spot.

<u>part </u>       <u> part</u>

whole     whole

<u>2 </u>   <u>6</u>

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Now you use the butterfly method, cross multiply the numerator and denominator and then divide that answer by the remaining numerator or denominator.  This will give you the missing value for your variable.

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5 0
3 years ago
What is the answer <br> y=2x+3<br> y=3x+5
Marizza181 [45]
We can use substitution.

We can substitute 2x + 3 for 'y' in the 2nd equation.

y = 3x + 5

2x + 3 = 3x + 5

Subtract 3 to both sides:

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Subtract 3x to both sides:

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Multiply -1 to both sides:

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y = 2x + 3

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