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TyleenValdez975
12.01.2020 •
Mathematics
Given f(x) = 2x² + 8x – 4 and g(x) = -5x + 6, find (f – g)(x) or f(x) – g(x)
a. 7x² + 8x – 10 b. 2x² + 13x – 10 c. 2x² + 3x + 2 d. 2x² - 6x +10
2. given f(x) = 3x – 5 and g(x) = x + 2, find f(x) * g(x) or (f*g)(x)
a. 4x - 3 b. 4x² - 3x - 10 c. 3x² + x - 10 d. 3x² - x + 10
3. given f(x) = x³ and g(x) = 4x + 3, find g(f(3))
a. 108 b. 405 c. 3,375 d. 111
4. given f(x) = 3x – 9 and g(x) = x – 4 what is the value of g(f(
a. 2 b. 6 c. 9 d. -4
5. which expression is equal to f(x) + g(x) given f(x) = x² + 10 and g(x) = x – 3 ?
a. 2x² + 7 b. 7x² + x - 3 c. x² + x + 7 d. x² - x – 10
6. which expression is equal to f(g(x)) given g(x) = x² - 2 and f(x) = x + 6?
a. x³ - 2x - 12 b. x² + 4 c. x³ - 12 d. x² - 2x – 12
7. which answer is equal to (f – g)(5) or f(5) – g(5), given f(x) = x + 2 and g(x) = x² + 5?
a. 37 b. 27 c. 17 d. – 23
8. which is equal to (f + g)(4) or f(4) + g(4), given f(x) = (x – 2)² and g(x) = x + 3 ?
a. 18 b. 28 c. 34 d. 11
9. find the inverse of f(x) = 3x – 2.
a.
b. f-1(x) = 3x + 2 c. f-1(x) = 2x - 3 d.
10. for any given functions f(x) and g(x), f(x) + g(x) = g(x) + f(x) ?
a. true b. false
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Ответ:
wow!
those are a lot of questions!
Ответ: