Answer:
QUESTION:
How do we show that two lines are parallel when using slope? How do we show they are perpendicular when using slope?
ANSWER:
<u><em>How to determine if a line is a parallel perpendicular or neither?</em></u>
The slopes of parallel lines are equal, and the slopes of perpendicular lines are opposite reciprocals. This is a worked example of determining whether given lines are parallel or perpendicular.
Step-by-step explanation:
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Answer:

Step-by-step explanation:
Slope intercept form:
where
is the slope and
is the y-intercept (the value of y when the line crosses the y-axis)
<u>1) Find the slope of the line (</u>
<u>)</u>
When it comes to parallel lines, they will always have the same slope but different y-intercepts. The given equation is
. Because 3 is in the place of m, we know that the slope of the line is 3. Therefore, the slope of the line parallel to it will also be 3. So far, this is what our equation looks like:

<u>2) Find the y-intercept (</u>
<u>)</u>
To find the y-intercept, we plug the given point (4,-3) into the equation we currently have and solve for b.

Subtract both sides by 12

Therefore the y-intercept of our line is -15. Plug -15 back into the original equation as b.

I hope this helps!
Answer: (y - 2) (y -3)
Step-by-step explanation:
7 that is what t should be
Answer:
.30
Step-by-step explanation:
Purchase Cost = Cost per Portion x Portion Per Purchase
16 oz=1lb