Answer:
The slope is:
The y-intercept is:
-3
There are 3 literature books, 4 geography books, and 3 science books on a shelf. If 3 books are chosen at random one after the o
1 answer:
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Answer:
Step-by-step explanation:
<u>Given</u> :
- y = 4x² + 8x - 12
4 cancels throughout.
- <u>y = x² + 2x - 4</u>
<u>Solving by quadratic formula</u> :
- x = -8 ± √(8)² - 4(4)(-12) / 8
- x = -8 ± √64 + 192 / 8
- x = -8 ± √256 / 8
- x = -8 ± 16 / 8
- x = -1 ± 2
- x = 1 and x = -3
∴ Hence, the x-intercepts are (1, 0) and (-3, 0). The roots of the equation are 1 and -3.