Use the discriminant to determine all values of k which would result in the graph of the equation y
=
3
x
2
+
k
x
+
75
y=3x
2
+kx+75 being tangent to the x-axis.

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

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.

What is always true about a positive integer raised to a negative odd power?