MAT 120

MAT 120 WEEK 8 DISCUSSION Solve the linear system by Gauss Jordan elimination y + z = 2 2x + 3z = 5 x + y + z = 3 Do you think this method has advantages over solving of simultaneous equations by earlier methods? Why or why not?

MAT 120 WEEK 7 DISCUSSION Solve for x. Describe the reason for each step you take. 27^(4x) = 9^(x + 1)

MAT 120 WEEK 6 HOMEWORK Directions: Show your work on all of these problems. You may find Word's equation editor helpful in creating mathematical expressions in Word. There is a tutorial on using this equation editor in Module 1 Lecture Notes. You also have the option of hand writing your work and scanning it. Complete the following problems in Chapter 3: Section Exercises. Note: Disregard any directions that ask to draw a graph. â

MAT 120 WEEK 5 DISCUSSION The composition function f(g(x)) = x^4 + 2x^2 + 1. If g(x) = x^2 then what is f(x)? Once you find f(x), find the function g(f(x)). Can you think of times in solving problems that this will be a useful rule to know?

MAT 120 WEEK 4 QUIZ 1 Reflect A B C and D through the y axis and give the coordinates of the reflected points A B C and D a. A' = (–1, 0), B' = (–3, –6), C' = (3, –1), D' = (2, 5) b. A' = (0, 1), B' = (6, 3), C' = (1, –3), D' = (–5, –2) c. A' = (0, –1), B' = (–6, –3), C' = (–1, 3), D' = (5, 2) d. A' = (1, 0), B' = (3, –6), C' = (–3, 1), D' =

MAT 120 WEEK 4 DISCUSSION The slope of a line is m 2 3 One of the points on the line is (4,-1). Find the equation of the line and present in slope-intercept form. Why is it useful to write equations in slope-intercept form? What was the form that you used to find the initial equation? What do you need in order to find this equation, could you find an equation with just two points?

MAT 120 WEEK 4 HOMEWORK Directions Show your work on all of these problems. You may find Word's equation editor helpful in creating mathematical expressions in Word. There is a tutorial on using this equation editor in Module 1 Lecture Notes. You also have the option of hand writing your work and scanning it. Complete the following problems in Chapter 2: Section Exercises. • Section 2.1 Exercises (p. 120): o Problems: 37-45 odd

MAT 120 WEEK 3 QUIZ 1 Fill in the blank so the result is a perfect square trinomial Then factor into a binomial square. x2 + 5x + _____ a. b. 25; (x + 5)2 c. d. Hint: Sections 1.5-1.6 SLO3:Solve quadratic equations by factoring, using the square root property, completing the square, or by quadratic formula. LO3A:Solve quadratic equations by factoring, by square root property, completing the square, or by quadratic formu

MAT 120 WEEK 3 DISCUSSION It is possible to solve the following quadratic equation by either factoring completing the square, or the quadratic formula. What do you need to do before you can start solving? Choose a method to solve and solve. Explain why you felt the method you chose was best. 6x^2 – 3x = 45

MAT 120 WEEK 2 HOMEWORK Directions Show your work on all of these problems. You may find Word's equation editor helpful in creating mathematical expressions in Word. There is a tutorial on using this equation editor in Module 1 Lecture Notes. You also have the option of hand writing your work and scanning it. Complete the following problems in Chapter 1: Section Exercises. Note: Disregard any directions to graph on a number line. â