exam
Maths Puzzle
Numerical Ability
I worked this out sqrt(3x+3)- 9 = 0; I came up with x=2 and checking the problem by plugging 2 in, I came up with 81 not = to 9. Can someone advise please?
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exam Other Question
Find the vertex for the graph of the quadratic function.
f(x) = x^2 – 11
Find a relationship between x and f(x)
write equation f(x)= ?
x variables: 0,1,2,3,4,5
f(x)variables: 5,4,3,2,?,?