Find \displaystyle\lim_{x\to -4}\dfrac{7x+28}{x^2+x-12} x→−4 lim x 2 +x−12 7x+28 limit, start subscript, x, \to, minus, 4, end subscript, start fraction, 7, x, plus, 28, divided by, x, squared, plus, x, minus, 12, end fraction.

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

What is the y-intercept of the line given by the equation