16. [3.06] If f(x) = 2x2 − 30, find f(4). (5 points)
35
–14
2
17
17. [3.06] If h(x) = –4x − 10, find h(−5). (5 points)
–30
1.25
10
–1
18. [3.06] Given the function f(x) = 2(x + 8), find x if f(x) = 12. (5 points)
2
40
–2
14
19. [3.06] Given the function f(x) = –2x + 8, find x if f(x) = 14. (5 points)
–20
36
–3
–11

Question

16.   [3.06] If f(x) = 2x2 − 30, find f(4).  (5 points)
35
–14
2
17
17.   [3.06] If h(x) = –4x − 10, find h(−5).  (5 points)
–30
1.25
10
–1
18.   [3.06] Given the function f(x) = 2(x + 8), find x if f(x) = 12.  (5 points)
2
40
–2
14
19.   [3.06] Given the function f(x) = –2x + 8, find x if f(x) = 14.  (5 points)
–20
36
–3
–11

anonymous · Answer

how do you do this f(x) = −2x + 10, find x if f(x) = 18