Use elimination x+y=24 3x + 7y = 88
1 answer:
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You want the equation for a line that goes through the data points (0, 248) and (5, 277). The slope is ∆y/∆x = (277-248)/(5-0) = 29/5 = 5.8. The first data point is the y-intercept, so your equation in slope-intercept form is
... y = 5.8x + 248 . . . . . . where y is MWh of generation and x is years since 2007.
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∆y is read "delta y". It means "the change in y".
Answer: y=4x+6.
Step-by-step explanation:
(-3,-6) k=4 y=kx+b ?
y=4x+b
-6=4*(-3)+b
-6=-12+b
-6+12=-12+12+b
6=b.
Hence,
y=4x+6.
