Page 78 - Math Course 3 (Book 1)
P. 78
Quadratic and Cubic Equations
Your Turn! Real World Example
GEOMETRY
Graph Quadratic Functions The length of a rectangle is 3 times its width.
Write a formula for the area and graph it. Find the
2
Graph y = –x . area of the rectangle whose width is 3.5 inches.
A. C.
A. A = 4w; 14 in² B. A = w² + 3; 15.25 in²
B. D.
C. A = 8w; 28 in² D. A = 3w²; 36.75 in²
Answer
2
Graph y = -x + 4. Answer
A. B.
Graph Cubic Functions
3
Graph y = x – 3.
C. D. A. B.
Answer
70
