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3 years ago

Find the equation of a line that contains the points (−3,−1) and (−4,−7). Write the equation in slope-intercept form

Mathematics

1 answer:

ikadub [295]3 years ago

7 0

Answer:

y = -8x -25

Step-by-step explanation:

The 2-point form of the equation of a line is useful when you are given 2 points.

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

y = (7 -(-1))/(-4 -(-3))(x -(-3)) +(-1)

y = 8/-1(x +3) -1

y = -8x -25

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Solve for y 4.2x - 1.4y = 2.1

NeX [460]

4.2x - 1.4y = 2.1
-1.4y = -4.2x + 2.1
y = (-4.2/-1.4)x + 2.1/-1.4
y = 3x - 1.5 <==

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3 years ago

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Which best describes the meaning of the statement if A then B

Oliga [24]

Answer:

$a => b \equiv ( \neg a \ \lor \ b )$

Step-by-step explanation:

You can understand the statement from many perspectives, but in terms of proposition logic it is best to understand it as "negation of a" or " b" in mathematical terms is written like this

$a => b \equiv ( \neg a \ \lor \ b )$

You can show that they are logically equivalent because they have the same truth table.

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3 years ago

What is one fourth of one ton HELP

Alekssandra [29.7K]

1/4 is the same thing as 25%. So we know that we have to find 25% of 2000 pounds, which is 1 ton. Convert 25% into a decimal and then multiply.

2000 times .25 is 500.
One fourth of one ton is 500 pounds.

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3 years ago

Read 2 more answers

Need help with all three

Pachacha [2.7K]

Answer:

i can only do 2 and 3 sorry

2. a

3.d

Step-by-step explanation:

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3 years ago

What is x? -3(52)=-3(x)+-3(2)

krek1111 [17]

Answer:

x = 50

Step-by-step explanation:

-3(52)=-3(x)+-3(2)

Divide both sides by -3

52 = x + 2

x = 50

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3 years ago