Given the equation below, find y when x = ½ . Y = -6x -8 3
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Answer:
The slope-intercept form:
Step-by-step explanation:
-To get the slope-intercept equation, you first need to find the slope by using this equation (starting counting from the first point, to the second point) in order to get the slope. After you have the slope, you need to find the y-intercept ( y-intercept is where the line crosses the y axis of the graph, basically). So, to find that, you need look for the point that only crosses the y axis to get the y-intercept. After you have both the slope and y-intercept, you put it in slope-intercept form:
The two points I found from the following graph are:
and
Trick: Since the line of the graph shows that it is down (not up), Start counting down from point to point
. Then, find the y-intercept:
Use it to create a slope-intercept form:
(where
represents the slope and
represents the y-intercept)
So, therefore the slope-intercept form is .
$4 is the original price of the jar consisting of peanut butter so therefor it = 100%. It's for sale at $3.60, so we divide $4 by 100% so we get the percentage for each cent and then we times it by 3.60 to get the percentage for $3.60 which is 90%. Now we subtract 90% from 100% to get the discounted percentage for 40cents :)
