Graph a line representing the proportional relationship with slope 4 containing the point (2, 8)

What is the y-intercept of the graph of the equation y=3(2^x)

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.

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.