exam Maths Puzzle Numerical Ability

Find the intercepts and then use them to graph the equation.

y= -5-5x

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exam Other Question

graph the function and determine the intervals if any on the real axis for which f(x) is greater than or equal to 0.
f(x)=squre root x+2
thanks and i hope you can help 6a/3xy + 2ab/5x^2y + 4b/2x^2 i tried to simplify this into a single fraction and came up with 60ax 12abx 60x^2y / 30x^2y lcd 30x^2y is this even close?