Math 110 Exam Complete Test , Practice Questions, Verified
Answer Key, and Study Guide for (Latest 2026 Edition)
Section 1: The Coordinate Plane and Lines
1. X and Y coordinates: The x-coordinate is the number of pixels (or units) along the
horizontal axis starting from the left. The y-coordinate is the number of pixels (or units)
along the vertical axis starting from the top.
2. x-intercept: The x-coordinate of a point where a line, curve, or surface intersects the x-
axis (where y=0).
3. Slope of a line: Also called the gradient, this is a number that describes both the direction
and the "steepness" of the line.
4. Point-slope form: The equation of a straight line written as y−y1=m(x−x1), where m is
the slope and (x1,y1) is a specific point on the line.
5. Linear equations: An equation between two variables that results in a straight line when
plotted on a graph.
6. Linear Equations with two variables: Specifically, an equation involving x and y (such
as Ax+By=C) that forms a straight line.
Section 2: Functions and Their Properties
7. Function: A special relationship where each input (x) has exactly one single output (y).
Example: f(x)=x/2.
8. Function notation: A method of writing algebraic variables as functions of others,
typically using f(x) instead of y.
9. Range and Domain:
o Domain: The set of all possible x-values that make the function work.
o Range: The resulting y-values produced after substituting the domain.
10. Composite functions: "Function Composition" is applying one function to the results of
another, written as (g∘f)(x) or g(f(x)).
11. Difference quotient: A formula used to calculate the slope of the secant line between
two points on a graph, defined as:
hf(x+h)−f(x)
12. Absolute Value: The magnitude of a real number regardless of its sign; it represents how
far a number is from zero.
