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Misha Larkins [42]
2 years ago
6

What is the slope of the line represented by the equation? –2x + y = –1

Mathematics
2 answers:
Harrizon [31]2 years ago
8 0
Isolate the y to one side so we get: y = 2x - 1
The slope of the line is 2.
telo118 [61]2 years ago
3 0

Answer:

The the slope is 2.

Step-by-step explanation:

2x+y-y=-1-y

2x=-1-y

\frac{2x}{2}=-\frac{1}{2}-\frac{y}{2}

\frac{-1-y}{2}

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How do linear, quadratic, and exponential functions compare?

Answer:

How can all the solutions to an equation in two variables be represented?

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<u><em>How can all the solutions to an equation in two variables be represented?</em></u>

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<u><em>How are solutions to a system of nonlinear equations found? </em></u>

Solve the linear equation for one variable.

Substitute the value of the variable into the nonlinear equation.

Solve the nonlinear equation for the variable.  

Substitute the solution(s) into either equation to solve for the other variable.

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6 0
2 years ago
Read 2 more answers
Find the angle that the line through the given pair of points makes with the positive direction of the x-axis
alexdok [17]

Answer:

Therefore the angle that the line through the given pair of points makes with the positive direction of the x-axis is 45°.

Step-by-step explanation:

Given:

Let

A(x₁ , y₁) = (1 , 4) and  

B( x₂ , y₂ ) = (-1 , 2)

To Find:

θ = ?

Solution:

Slope of a line when two points are given is given bt

Slope(AB)=\dfrac{y_{2}-y_{1} }{x_{2}-x_{1} }

Substituting the values we get

Slope(AB)=\dfrac{2-4}{-1-1}=\dfrac{-2}{-2}=1\\\\Slope=1

Also Slope of line when angle ' θ  ' is given as

Slope=\tan \theta

Substituting Slope = 1 we get

1=\tan \theta

\tan \theta=1\\\theta=\tan^{-1}(1)

We Know That for angle 45°,

tan 45 = 1

Therefore

\theta=45\°

Therefore the angle that the line through the given pair of points makes with the positive direction of the x-axis is 45°.

5 0
3 years ago
A certain region of a country houses 1/178 of the total number of libraries in the country. If there are about 10680 libraries i
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Answer:

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Step-by-step explanation:

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3 years ago
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4 (k - 6) = 6 (-4 - 5k)<br> a) 10<br> b) 0<br> c) -2<br> d) 8
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Step-by-step explanation:

step 1. what is the question? solve for k? okay.

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step 5. k = 0.

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Is the following a reflection,<br> rotation or translation?
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