exam Maths Puzzle Numerical Ability

Sole the system of equations by graphing. Then classify the system as consistent or inconsistent and the equations as dependent or independent

3x-y=26
3x+4y=-14

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exam Other Question

Let f(x)=sqrt x+1 and g(x)= 1/x+1. find the following and state the domain for each

(f+g)(x) Begin with ax^2 + bx + c = 0 and derive the quadratic formula by completing the square

then solve x = -2 - 3x^2 by using the quadratic formula