exam Maths Puzzle Numerical Ability

A- How can the graph for the rule y=2x+1 be used to predict the result for an imput (x- value) of 7? How can the graph be used to predict the output (y- value) associated with an input of 3 1/2?

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Hi, I need help with this problem:
f(x)= -3(x+2)^2+3
I have to tell where the fucntion is increasing and decreasing, what is the concavity, give the coordinates of the vertex and As a financial consultant, your clients, Maria and George Jefferson, have both struggled to complete their undergraduate college degrees at night school and online, working hard to