If a coordinate pair (x, y) makes the equation 4x + 5y = −5 true, which of the following statements is true? a. these values of x and y are the only ones that satisfy 4x + 5y = −5. b. the point (x, y) is not on the graph of 4x + 5y = −5. c. the point (x, y) is on the graph of 4x + 5y = −5. d. the coordinate pair (2x, 2y) also makes the equation true

Which of the following lines is not parallel to the graph of y = 4x +7?

1- 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. 2- 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. 3- 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 part b?

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?