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2 years ago

Write an equation of the line passing through the point A(3,−4) that is parallel to the line y = −x+8.

Mathematics

1 answer:

andrezito [222]2 years ago

4 0

Answer:

y = -x -1

Step-by-step explanation:

The x- and y-coordinates will be the same for the parallel line, so we only need to find the constant that needs to replace the +8 in the given equation.

y = mx +b

y = -x +b . . . . . with the coefficient of x filled in

-4 = -(3) +b . . . with the given point filled in

b = -1 . . . . .add 3 to both sides

The equation is ...

y = -x -1

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At 2 hours before sunset, the temperature is 0°F. At 2 hours after sunset, the temperature is −4°F. Identify the equation repres

Yakvenalex [24]

For the given condition the equation represents the temperature y, in degrees Fahrenheit, at x hours after sunset will be y = -4x + 0.

<h3>What is the equation?</h3>

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It is given that, at 2 hours before sunset, the temperature is 0°F. 2 hours after sunset, the temperature is −4°F and the equation representing the temperature y, in degrees Fahrenheit, at x hours after sunset.

The equation is obtained as,

y = -4x + 0.

Thus, for the given condition the equation represents the temperature y, in degrees Fahrenheit, at x hours after sunset will be y = -4x + 0.

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1 year ago

I need help what is p(x)?

Andreyy89

Answer:

C. p(x) = 5x - 20

Step-by-step explanation:

p(x) = r(x) - c(x)

p(x) = (11x) - (6x + 20)

Remove the first set of parentheses because they are unnecessary.

p(x) = 11x - (6x + 20)

To remove the second set of parentheses, you must distribute the negative sign throughout the parentheses.

p(x) = 11x - 6x - 20

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2 years ago

Linear Equations - Practice Word Problems

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Answer:

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#2 - 5

Step-by-step explanation:

#1 - This is really simple, as long as you don't think of it as numbers. The numbers 5 and 3 are being added to a number to make 19, so all you have to do is 19 - 5 - 3 or 19 - 8, which equals 11. So the certain number is 11.

#2 - The equation for this problem is (3 x ?) - 5 = 10. This equation is formed because you are subtracting 5 from 3 times a number, and to do all of this first, you need to figure out what 3 times a number equals (so it goes into the parentheses). From there, all you need to do is give a value that would substitute the question mark (normally you use a variable like n, x, y, etc.). This value would be 5, because 3 x 5 = 15 and 15 - 5 = 10.

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Answer:

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Step-by-step explanation:

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