2. Warm-Up/Final Exam Review:
1. Name the x and y intercepts, then graph the line
using graph paper.
y intercept is 3;
x intercept is 18
3. 3. What are the three methods for
solving systems of equations?
A. Graphing B. Substitution C. Elimination
4. Solve the following systems of equations
Warm-Up/Final Exam Review:
4. Quadratic Exam Review
I. The Discriminant
II. Quadratic Applications
III. Questions on any Quadratic Topic
IV. Class Work
5. The Discriminant
The discriminant is the part of the
quadratic formula inside the radicand.
The discriminant tells you the
number of solutions and should be
computed first. If the discriminant is:
= 0; 1 solution
> 0; 2 solutions
< 0 no solutions
y = 4x2 – 17x – 15
How many times does the graph cross the x axis?
8. A batter smashed a fastball high into the gap
between left and center fields. The path of the ball
is shown by the equation y = -.2x2
+ x. This allowed
the center fielder enough time to run and make the
catch. How high was the ball hit?
-1/.02 = 50; x = 50 Substitute 50 for x; y =
Quadratic Applications
