Page 860 - Algebra 1

Column B will be filled with the values of the expression.
The spreadsheet will automatically evaluate the expression using the corresponding value of x in column A.
b. Use the spreadsheet to find the value of the expression when x = 22.
SOLUTION
Enter 22 in the first column, and copy the expression into the corresponding row of column B. The value is 2140.
Use a graphing calculator to evaluate -x2 - 7x + 9 for the given values. (Ex 1)
a. x=22 b. x=42 c. x=62
Use a graphing calculator to evaluate 6x2 + x - 13 for the given values.
(Ex 1)
d. x=48 e. x=78 f. x=108
Use a spreadsheet to evaluate -2x2 + 8x - 4 for the given values. (Ex 2)
g. x=6 h. x=12 i. x=18 Use a spreadsheet to evaluate x2 + 14x - 21 for the given values.
(Ex 2)
j. x=4 k. x=9 l. x=14
Lesson Practice
Appendix Lesson 5 845
APPENDIX LESSONS