exam
Maths Puzzle
Numerical Ability
1/a - 3 - 1/a + 3 + 2a/ a^2 - 9
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exam Other Question
can someone please help me with this problem:
What is g(x) = f^-1(x) if f(x) = 1/2x?
2. If f(x) = a(x+b)² + c, and a>0, what happens to the graph of f(x) when:
a. a decreases? b. b decreases?
c. c decreases?