a number or a variable, or the product of a number and variable(s) formula 2. a number; a term containing no variables term 3. an equation that uses variables to state a rule variable 4. one term or multiple terms connected by an addition or subtraction sign constant 5. a letter or symbol used to represent an unknown number expression

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

the answer is 11.2 (i know i’m late)

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.