Aline contains the point (0,4). if the slope of the line is m=5, write the equation of the line using slope-intercept form

The graph shown is the graph of which function?

Reflect the point (7,0) across the y-axis

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.