10y - 5x = 40 Add 5x to both sides
10y = 5x + 40 Divide both sides by 10
y =
x + 4
The
y-intercept is 4 and the
slope of the line is .
You can find these by comparing your equation to the equation y = mx + b, where m is the slope of the line and b is the y-intercept.
Answer:
third option (-3,3,5,9)
Step-by-step explanation:
domain is the starting point of the set (x coordinate )
Assume that the rule connecting height of the candle to time is a linear one. If you do, then we have to find the equation of this line, and then use this equation to predict the height of the candle after 11 hours.
Two points on this line are (6,17.4) and (23, 7.2). The slope is thus
7.2-17.4 -6
m = --------------- = ----------- or -3/5.
23-6 10
Find the equation of the line. I'm going to use the slope-intercept formula:
y = mx + b => 7.2 = (-3/5)(23) + b. Solving for b, b = 21.
Now we know that y = (-3/5)x + 21
Let x=11 to predict the height of the candle at that time.
y = (-3/5)(11) + 21 = 14.4 inches (answer)
<em>:-) :-( ;-) :-P (^o^) ^o^ ^_^ :-! 8-) :-{ :-[ (-: </em>
<em>or</em>
<em>
that is not an exercise. but still thanks for the points.</em>
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