Page 343 - Algebra 1

25. Write the equation 5x + 3y = 9 in slope-intercept form. (49)
26. Multiple Choice Which equation has a slope of -_1 and a y-intercept of -3? (49) A 4x+2y+3=0 2
B 3x+6y+6=0
C 5x+10y+30=0 D 6x + 2y + 1 = 0
*27. Determine which values in the set {-1, 0, 1, 2} are solutions to the inequality (50) x-1≥4.
28. Error Analysis Two students graphed the statement “A number is at least 9” as shown (50) below. Which student is correct? Explain the error.
29. Multi-Step The graph shows that the temperature is now at least the temperature it (50) was this morning. How can the current temperature be expressed with a sentence?
Student A
6 8 10 12
Student B
6 8 10 12
3 4 30.
-18 -16 -14 -12 a. Write an inequality for the graph.
b. Translate the inequality into a sentence.
Measurement The specifications for a housing development include that each
(50) lot has to be at least 1_1 acres. Write and graph an inequality to represent the 2
situation.
328 Saxon Algebra 1