Name __________________________
4.1-4.3 Vocabulary Review
Matching:
_____ 1. coordinate plane
A. The vertical number line in a coordinate plane.
_____ 2. ordered pair
B. When y is isolated on one side of a linear equation.
_____ 3. function form
C. The first number in an ordered pair.
_____ 4. solution of a linear equation
D. The y-coordinate of a point where a graph crosses the y-axis.
_____ 5. graph of a linear equation
E. An ordered pair that makes the linear equation true.
_____ 6. x-axis
F. The horizontal number line in a coordinate plane.
_____ 7. y-axis
G. The set of all points that are solutions to a linear equation.
_____ 8. x-coordinate
H. Formed by two real number lines that intersect at a right angle.
_____ 9. y-coordinate
I. A pair of numbers used to identify a point on a coordinate plane.
_____ 10. x-intercept
J. The x-coordinate of a point where a graph crosses the x-axis.
_____ 11. y-intercept
K. The second number in an ordered pair.
Use the coordinate plane to the right to answer #12-16:
12. Label the four quadrants.
13. Label the x-axis.
14. Label the y-axis.
15. Using an ordered pair, label the origin.
16. Plot the point (5, -3).
17. What quadrant would the point (-4, 9) be in?
18. What is true of all x-intercepts?
19. What is true of all y-intercepts?
20. What kind of lines will have no x-intercept?
Name ________________________
4.1 – 4.3 Review
1) Plot and label the points A (3,-8) B (0,3) C (-7, -2) on the coordinate plane below.
2) Find two solutions for the following equation.
1
y   x7
8
3) Rewrite the following equation in function form.
y  ( x  3)
4) Rewrite the following equation in function form.
14  6 y  7 x
5) Is the point (3, -4) on the graph of the following equation? Verify algebraically.
5x  3 y  3
Graph the equations and name any two points on the line.
6)
8)
y  3
7)
3 y  2 x  12
Find the x-intercept and the y-intercept of the following equation then graph the equation.
Label the points where the line crosses each axis.
5 x  25 y  50
9)
The Spirit Team is selling t-shirts and sweatshirts for a fundraiser. The t-shirts sell for
$12, and the sweatshirts sell for $30. Their goal is to raise $900.
a.
Write an algebraic model for the situation. Use x to represent the t-shirts and y to
represent the sweatshirts.
b.
Find the x-intercept and the y-intercept, and tell what each represents.
c.
Graph the linear equation.
d.
Rewrite the equation in function form.
e.
Use the function to find the number of sweatshirts sold if 40 t-shirts were sold.