127 is rational
the number 127 is rational because it can be expressed as the quotient of two integers p and q in the form:
which can be represented as
while if the number is , then it would be irrational because the square root of 127 gives a decimal number that goes on and on and cannot be represented as a fraction.
option a. the slope is 1/2.
replacing the known values:
the slope is 1/2> 0 (positive), then the line rises