All categories

2 years ago

(-15,-6), (8,3) Find the slope of the line through each pair of points?

Mathematics

2 answers:

lukranit [14]2 years ago

8 0

Slope is equal to the change in

over the change in

, or rise over run.

m = change in y / change in x

The change in

is equal to the difference in x-coordinates (also called run), and the change in

is equal to the difference in y-coordinates (also called rise).

m = y^2 - y^1 / x^2 x^1

Substitute in the values of

and

into the equation to find the slope.

−

(

−

)

−

(

−

)

Simplify.

Simplify the numerator.

Tap for more steps...

−

(

−

)

Simplify the denominator.

Multiply

−

Add

and

9/23

posledela2 years ago

3 0

Answer:

Step-by-step explanation:

Δy = -6 - 3 = -9

Δx = -15 - 8 = -23

slope = Δy/Δx = 9/23

You might be interested in

Two boys and three girls are auditioning to play the piano for a school production. Two students will be chosen, one as the pian

finlep [7]

Answer:

30% is the correct answer.

Step-by-step explanation:

Total number of boys = 2

Total number of girls = 3

Total number of students = 5

To find:

Probability that the pianist will be a boy and the alternate will be a girl?

Solution:

Here we have to make 2 choices.

1st choice has to be boy (pianist) and 2nd choice has to be girl (alternate).

$\bold{\text{Required probability }= P(\text{boy as pianist first}) \times P(\text{girl as alternate})}$

Formula for probability of an event E is given as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

For $P(\text{boy as pianist})$ , number of favorable cases are 2 (total number of boys).

Total number of cases = Total number of students i.e. 5

So, $P(\text{boy as pianist})$ is:

$P(\text{boy as pianist}) = \dfrac{2}{5}$

For $P(\text{girl as alternate})$ , number of favorable cases are 3 (total number of girls).

Now, one boy is already chosen as pianist so Total number of cases = Total number of students left i.e. (5 - 1) = 4

$P(\text{girl as alternate}) = \dfrac{3}{4}$

So, the required probability is:

$\text{Required probability } = \dfrac{2}{5}\times \dfrac{3}{4} = \dfrac{3}{10} = \bold{30\%}$

6 0

3 years ago

Please help me with this math question and thank you to those who can and will help me.

Roman55 [17]

Answer: B plz mark me bralny

Step-by-step explanation:

3 0

3 years ago

Quincy bought necklaces for $8.00 each. At what price would he need to sell them to make a 25% profit

Zepler [3.9K]

10 dollars. 8÷4=2. 8+2=10

25%= 4

6 0

2 years ago

Read 2 more answers

What is 1 1/3 as a improper fraction

Mumz [18]

Okay so for this all you have to do is add 1 to 1/3.

However, to do this you first need to convert 1 into a fraction.

1 = 3/3
3/3 + 1/3 = 4/3

Hope this helps :)

8 0

2 years ago

5x + 3y = 4z Solve for Y.

harkovskaia [24]

Answer:

y = -5/3x + 4/3z

Step-by-step explanation:

5x + 3y = 4z

3y = -5x + 4z

y = -5/3x + 4/3z

6 0

3 years ago

Read 2 more answers