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What is the slope of the line parallel to y=2/5x-1?
I really need help with this fast please

Respuesta :

Answer:

The slope will be 2/5.

Step-by-step explanation:

[tex]y = 2/5x -1[/tex] is written in slope-intercept form.

This formula looks like:

[tex]y=mx+b[/tex]

where:

  • M = Slope
  • x = independent variable
  • b = y-intercept

So:

  • [tex]2/5[/tex] is our slope
  • [tex]x[/tex] remains our independent variable
  • [tex]-1[/tex] is our y-intercept.

1 ). For two lines to be parallel they must have the same slope.

  • Slope would remain 2/5

2 ). For two line to be perpendicular they must have slopes that are opposite reciprocals.

  • .  Slope would become -5/2

As the question states, we must find the slope of a line parallel to the equation given. This means that the slope will remain 2/5.

Lets check our work!

Choose a random ordered pair. I will choose (5, 6).

Now, using point slope-form we can find out if what was said above is true!

This formula looks like:

[tex]y - y1 = m (x-x1)[/tex]

Let us substitute:

[tex]y - 6 = 2/5(x-5)[/tex]

Distribute:

[tex]y-6=2/5x-2[/tex]

Add 6 to both sides:

[tex]y= 2/5x+4[/tex]

Now using both equations I will plot them on a graph to see if they a parallel.

As you can see from the graph below, these lines are parallel. Where the equation you were given is in blue and the equation I made is in red.

Based on all of the evidence, the slope will be 2/5.

Hope this helped! :)

Ver imagen DunderMifflinite
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