91Ó°ÊÓ

Fill in the blank. A (n) ________ is a statement that two algebraic expressions are equal.

Fill in the blank. An equation of the form \(a x^{2}+b x+c=0,\) where \(a, b,\) and \(c\) are real numbers and \(a \neq 0,\) is a _______ , or a second-degree polynomial equation in \(x .\)

Fill in the blank(s). It is sometimes possible to write two inequalities as one inequality, called a _____ inequality.

Fill in the blank(s). The points \((a, 0)\) and \((0, b)\) are called the______ and _______ respectively, of the graph of an equation.

Match the type of complex number with its definition. (a) real number (b) imaginary number (c) pure imaginary number (i) \(a+b i, a=0, b \neq 0\) (ii) \(a+b i, b=0\) (iii) \(a+b i, a \neq 0, b \neq 0\)

Fill in the blank. The general form of a ____ equation is $$a_{n} x^{n}+a_{n-1} x^{n-1}+\cdots+a_{2} x^{2}+a_{1} x+a_{0}=0$$

Fill in the blank. Consider a collection of ordered pairs of the form \((x, y) .\) If \(y\) tends to increase as \(x\) increases, then the collection is said to have a __________ correlation.

Fill in the blank(s). A ______ of a function is a number \(a\) such that \(f(a)=0\)

To find the least squares regression line for data, you can use the ___________ feature of a graphing utility.

Fill in the blank. The part of the Quadratic Formula \(b^{2}-4 a c,\) known as the __________ , determines the type of solutions of a quadratic equation.