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3 years ago

What is the slope of (-7,5) and (5,-1)

Mathematics

1 answer:

svlad2 [7]3 years ago

4 0

Answer:

-1/2

Step-by-step explanation:

Method 1)

Use the graph

You must go from point (-7, 5) to point (5, -1) by using only vertical and horizontal paths.

Start at point (-7, 5).

Go down 6 units. That means a rise of -6.

Now go right 12 units to point (5, 1)

That is a run of 12 units.

slope = rise/run = -6/12 = -1/2

Method 2)

Use the slope formula

slope = (y2 - y1)/(x2 - x1) = [5 - (1)]/(-7 - 5) = (5 + 1)/(-12) = 6/(-12) = -1/2

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Write an equation of the line that passes through (7,10) and is perpendicular to the line y=12x−9.

Ulleksa [173]

Answer:

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Step-by-step explanation:

y = 12x - 9

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3 years ago

Consider the equation -12x+4y=48=0 find the y value and the y intercept of the line.

Nutka1998 [239]

Answer:

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Step-by-step explanation:

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3 years ago

In converting 4.5 pounds to ounces, what unit (omit the number) would you

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Answer:

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Step-by-step explanation:

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3 years ago

Use the graph to find the solution of the system of equations {y = x^2 + 6x + 8 {y = x + 4

Phantasy [73]

Essentially when people ask you find the solution to system of equation, there asking at what x value do these to graphs intersect. The easiest way to do this is to get a graphing calculator, or desmos and type in the equation and find where they intersect. Heck, even the question says to solve it with a graph, but I'll demonstrate it algebraically.

One way you can do this is set the equation equal to each other. This is because you want to know at what x-value has the same y-value. So we get:

x^2 + 6x + 8 = x + 4

We can then combine like terms, or move everything to one side. So we get:

x^2 + 5x + 4 = 0.

Then we can use the quadratic formula to solve for x.

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This simplifies into:

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3 years ago

Plz help with my math!!!

morpeh [17]

Set up a proportion with the similar sides. Then you should find what KB is. Sorry I couldnt answer directly. Im actually doing math right now

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4 years ago