What is the answer ??
2 answers:
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Answer:
or
Step-by-step explanation:
step 1
Find the slope of the line
The formula to calculate the slope between two points is equal to
we have the ordered pairs
(3,-5) and (1,-9)
substitute the values
step 2
Find the equation in point slope form
Analyze two cases
<em>First case</em>
we have
substitute
<em>Second case</em>
we have
substitute
Note: The equation of the line in point slope form varies according to the point you choose, in contrast to the slope-intercept form
The way we can find out the unit rate (also known as the <em><u>SLOPE</u></em>) is by using the table as coordinates!
The slope formula is
With the table, the TIME column can be "x"
The DISTANCE column can be "y"
____________________________
As coordinates, it would look like...
(0,0)
(20, 25)
(30, 37.5) and so on!
_____________________________
All we need to do now is use 2 of these coordinates and plug them into the slope formula in their correct places to find the unit rate!
Example:
solve!
= 12.5/10 ⇒ 1.25 ( or 5/4 in fraction form)