Plot a point at the y-intercept of -2 or y = -2
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From there make a straight horizontal line
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Then Shade the upper-half of that line one color This shaded part stands for
Y > -2
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Shade the lower half a different color, this stands for y ≤ 6
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That should be it!
The expression that represents the current price of milk is y +2.55. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.
For the angle MPN we know that is oposite to the angle QPL so the will be equal so:

Now with the value of MPN we can made an equation for x so:

and we solve for x

and the angle LPM will be the complementari angle of 125 so: