Use the discriminant to determine which relation has no zeros. a) y = 4x^2 + 3x - 9
b) y = 9x^2 - x + 7
c) y = -5x^2 - 15x + 11
d) y = x^2 + 6x + 9

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =