Math 3120 Introduction to Linear Algebra

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Homework 7

Due Friday May 3, in class
• Section 6.4
• Read Section 6.4. Do the True/False questions (p. 364). Do Problems 6.68, 6.70(b). WeBWorK reading question due April 12 @ 11:45 am.
• In class (group work): 6.70(a), 6.83(b)
• Homework: 6.70(c), 6.71, 6.72, 6.74, 6.77, 6.83(a)(c), 6.85, 6.86
• Hand In: 6.71(b), 6.83(c)
• Section 6.5
• Read Section 6.5. Do Problem 6.89. WeBWorK reading question due April 15 @ 11:45 am.
• In class (group work): 6.92, 6.95
• Homework: 6.93, 6.96, 6.99, 6.101, 6.102, 6.103
• Hand In: 6.96, 6.103, plus the following problem:
• Find the least squares best fit line $$y = a + bt$$ to the four points $$(t,y) = (0,1),(1,5),(3,13),(4,17)$$. Also compute the predicted values vector $$B_0$$ of $$y$$ for each of the given $$t$$ values, and then compute the error vector $$B_1 = B - B_0$$.
• WeBWorK assignment due April 29 @ 11 pm
• Section 6.6
• Read Section 6.6. Do the True/False questions (pp. 391-392). Do Problems 6.105, 6.106. WeBWorK reading question due April 26 @ 11:45 am.
• In class (group work): 6.107(a), 6.108(b), 6.112
• Homework: 6.107(c)(e), 6.108(c)(d), 6.110, 6.114, 6.115, 6.122
• Hand In: 6.107(e) (identify the surface type), 6.110
• Section 6.7
• Read Section 6.7. Do the True/False questions (pp. 403-404). Do Problems 6.126(a), 6.127(a). WeBWorK reading question due May 1 @ 11:45 am.
• In class (group work): 6.126(c), 6.127(e)
• Homework: 6.126(b)(d), 6.127(c)(b)(d), 6.130(a)(b), 6.134, 6.135
• Hand In: none