exam Maths Puzzle Numerical Ability

How do I convert "y=(-1/3)x+5", in Slope Intercept Form ("y=mx+b"), to Standard Form (Ax+By=C)?

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exam Other Question

For the function, y= 1/x-2

a) Give the y values for x = -1, 0, 1, 2, 3, 4.





b) Using these points, draw a curve.
Show graph here.
Compare equations with one variable to equations with two variables.
How are they alike? How are they different?
What if an equation had three variables?