Page 683 - Algebra 1

*22.
(96)
*23.
(97)
Multiple Choice What are the zeros for the function y = 4x2 + 28x - 72? A 0, 4 B 0, -4
C 2, -9 D 2, -76
Band The school band is performing a music concert. Tickets cost $3 for
adults and $2 for students. In order to cover expenses, at least $200 worth of tickets must be sold. Write an inequality that describes the graph of this situation.
y
3 units
O
2 units
x
-40
40
-40
3 4
24.
(93)
*25.
(97)
26.
(97)
27.
(9 0)
28.
(84)
29.
(83)
30.
(Inv 8)
Measurement Jesse bought a new glass window to go in his front room. The area of the window is (2 + 3x3 - 8x) square inches. The width is (x + 4) inches. What is the length?
Error Analysis Students were asked to write an inequality that results in a solid, vertical boundary line. Which student is correct? Explain the error.
Graph the inequality 4x + 5y ≥ -7.
Multi-Step Pedro biked 6 miles on dirt trails and 12 miles on the street. His
biking rate on the dirt trails was 25% of what it was on the street. a. Write a simplified expression for Pedro’s total biking time.
b. Analyze Explain how finding the simplified expression would change if Pedro’s biking rate on the trails was 50% of what it was on the streets.
Graph the function y - 3 = -x2 + 3.
A square has a side length s. The square grows larger and has a new area
of s2 + 16s + 64. What is the new side length?
Write an equation where j is inversely proportional to m and n and directly
proportional to p and q.
Student A
x≤6
Student B
x < -2
668
Saxon Algebra 1