exam Maths Puzzle Numerical Ability

What similarities and differences do you see between functions and linear equations? Are all linear equations functions? Is there an instance when a linear equation is not a functi

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exam Other Question

Area of a window. A window is in the shape of a square of side s, with a semicircle of diameter s above it. Write a function that expresses the total area of the window as a function of s. Can you please help me this question isn't in the book?
3(y-2)+y(1+2)=4
3y-6+1y+2y=4
3y+1y+2y=4-6
6y/6=-2/6
y=-1/3
the thing is when I check to make sure it is a solution it