Is 42 and 240 a rational number?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2