Interchange the x and y and solve for the resulting y.
x = 4y^2 - 2
(x + 2) = 4y^2
(x + 2)/4 = y^2
+/- sqrt(x + 2)/2 = y
The graph of these two is below.
The original is in red
The inverse is in blue and green
That would become $287,448
If the cents value was over 50 cents, then you would round the ones place up one to 9. But since 12 cents is less than 50 cents, you round down to 8 (from 8.12)
The limit does not exist. Because its left limit when x < 0 is -9, and the right limit is 2, which is not equal.
Hello from MrBillDoesMath!
Answer:
See Discussion section below for details
Root 1: -2, -1
Root 2: 0, 1
Root 3: 1, 2
Discussion:
From the attached plot, the the real zeroes are approximately
-1.8, .3, 1.5
-2 < -1.8 < -1
0 < 0.3 < 1
1 < 1.5 < 2
The consecutive integers are shown in bold face
Out of curiosity, it's now 11:38am PST. Did you write the question from a public school room, a school computer lab, or are you home tutored?
Thank you,
MrB