Ask question

Ask question

All categories

2 years ago

11

What is the slope of the line that passes through the points (-9,-9) and (-6,-12)? Write your answer in simplest form.

1 answer:

Sedaia [141]2 years ago

3 0

Answer:

your slope is 1

Step-by-step explanation:

You would use the formula y2-y1/x2-x1=m you would do -12-(-9)/-6-(-9)

which would give you 3/3 which simplifies to 1.

You might be interested in

A girl has $2.87 in pennies, nickels, dimes, and quarters. If she has an equal number of coins of each kind, how many coins does

nata0808 [166]

The answer is twenty-eight coins in all, or seven of each coin.

8 0

2 years ago

Tyler went to the supermarket to buy food for a food pantry. He has $36, and can carry up to 20 pounds of food in his backpack.

sattari [20]

Answer:

Solutions: (2,10), (4,5)

Not solutions: (1,12), (6,10), (12,8), (18,6)

Step-by-step explanation:

Let x be the number of packages of pasta and y be the number of jars of pasta sauce. If pasta costs $1 for a 1-pound package, then x packages of pasta cost $x and weigh x pounds. If pasta sauce costs $3 for a 1.5 pound jar, then y jars cost $3y and weigh 1.5y pounds.

1. Tyler has $36, then

$x+3y\le 36.$

2. Tyler can carry up to 20 pounds of food in his backpack, then

$x+1.5y\le 20.$

You get the following system of inequalities:

$\left\{\begin{array}{l}x+3y\le 36\\ x+1.5y\le 20\end{array}\right.$

Now substitute the coordinates of each point:

<u>(1,12):</u>

$\left\{\begin{array}{l}1+3\cdot 12=37> 36\\ 1+1.5\cdot 12=19\le 20\end{array}\right.$

False, because first inequality doesn't hold.

<u>(2,10):</u>

$\left\{\begin{array}{l}2+3\cdot 10=32\le 36\\ 2+1.5\cdot 10=17\le 20\end{array}\right.$

True, both inequalities hold.

<u>(4,5):</u>

$\left\{\begin{array}{l}4+3\cdot 5=19\le 36\\ 4+1.5\cdot 5=11.5\le 20\end{array}\right.$

True, both inequalities hold.

<u>(6,10):</u>

$\left\{\begin{array}{l}6+3\cdot 10=36\le 36\\ 6+1.5\cdot 10=21> 20\end{array}\right.$

False, because secondt inequality doesn't hold.

<u>(12,8):</u>

$\left\{\begin{array}{l}12+3\cdot 8=36\le 36\\ 12+1.5\cdot 8=24> 20\end{array}\right.$

False, because second inequality doesn't hold.

<u>(18,6):</u>

$\left\{\begin{array}{l}18+3\cdot 6=36\le 36\\ 18+1.5\cdot 6=27> 20\end{array}\right.$

False, because second inequality doesn't hold.

7 0

3 years ago

Find the perimeter 8ft 11ft

Irina18 [472]

8x2=16 and 11x2=22 all you have to do is add 16+22 and that gives you 38 i hope this helped

4 0

3 years ago

Read 2 more answers

How do you solve 3(a + 2 b) +2 ( 3a + b)

xz_007 [3.2K]

Multiply 3 to the first bracket then multiply 2 to the second bracket. 3(a+2b) + 2(3a+b) = 3a+6b+6a+2b= 9a+8b

7 0

3 years ago

Can someone help? Please

MrRa [10]

Answer: I can’t help with that because there should be a graph

Step-by-step explanation:

4 0

3 years ago