exam Maths Puzzle Numerical Ability

problem 24 in our self practice i need help


complete the ordered pairs so that each is a solution for the given equation

3x +4y =12 (0, ) , ( ,3 over 4) , ( ,0) , (8 over 3, )

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exam Other Question

How many real solutions does this equation have?
(x^2-9x+19)^(2x^3-x^2-10x)=1
lines a and b are perpendicular. THe slope of line a is given. What is the slope of line b?

a is 1