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3 years ago

Find the slope of the line that passes through the points (-6,-8) and (-6,12)

Mathematics

2 answers:

yulyashka [42]3 years ago

5 0

Answer:

Undefined

Step-by-step explanation:

m = Δy / Δx

m = (12 − -8) / (-6 − -6)

m = 20 / 0

m = undefined

The slope is undefined.

romanna [79]3 years ago

5 0

Answer:

The slope is 0. However, it is a horizontal line where x=-6.

Step-by-step explanation:

Use the equation m= y2-y1/x2-x1 to get 12--8/-6--6. Two negatives means a positive, so you get 20/0. This means there is no slope, because you cannot divide by 0. However, you notice that both x-values are -6, so you can safely assume that there is a horizontal line where x=-6.

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2 years ago

1. Refer to the equation 3x − 5y = 15. (a) Create a table of values for at least 4 points. Show your work on how you found the v

Ann [662]

Answer:

(0, 3 ), (5, 0), (10, -3), (15, -6)

Step-by-step explanation:

3x − 5y = 15

-5y = 3x + 15

y = $-\frac{3}{5} x + 3$

Point 1: (0, 3 )

y = -3/5(0) + 3

y = 0 + 3

y = 3

Validate:

3 = -3/5(0) + 3

3 = 3

Point 2: (5, 0)

y = -3/5(5) + 3

y = -3 + 3

y = 0

Validate:

0 = -3/5(5) + 3

0 = 0

Point 3: (10, -3)

y = -3/5(10) + 3

y = -6 + 3

y = -3

Validate:

-3 = -3/5(10) + 3

-3 = -3

Point 4: (15, -6)

y = -3/5(15) + 3

y = -9 + 3

y = -6

Validate:

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6 0

3 years ago

Read 2 more answers

Which of the following is not one of Euclid’s postulates?

kifflom [539]

I think you forgot to list the following.

5 0

2 years ago

They sell cakes for $4 each and spent $45 for advertisement if each cake costs 80 cents to make, how many cakes do they need to

Damm [24]

Answer:

They need to sell 14 cakes to break even.

Step-by-step explanation:

The selling price of each cake = $ 4

The amount spent on the advertisement = $45

The cost of each cake = 80 cents =$ 0.8

Let us assume the number of cakes sold to BREAK EVEN = m

⇒ For m cakes: TOTAL COST = TOTAL EARNED

Now, if the cost of 1 cake = $0.8

So, the cost of making m cakes = m X ( cost of 1 cake) = m x ( 0.8) = 0.8 m

Total Cost of m cakes = Making cost + Advertisement cost

= 0.8 m + $45

⇒C = 0.8 m + 45 ........... (1)

Here, the selling price of 1 cake = $4

So, the cost of selling m cakes = m X ( Sell cost of 1 cake)

= m x ( 4) = 4 m

⇒S = 4 m ........... (2)

To break even: S = C ⇒0.8 m + 45 = 4 m

or, 45 = 3.2 m

or, m = 45/3.2 = 14.06≈ 14

⇒ m = 14

Hence, they need to sell 14 cakes to break even.

6 0

3 years ago