A line has an undefined slope and passes through the point (4,2). Write the equation of the line.

Solve the system of equations. y= 2x y= x^2 - 15

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?