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Linear Algebra

Solve the equation by graphing.

These are questions that I got wrong on a test..can someone show me how to do these? ________ Solve the equation by graphing. 2x-3y=12 3y-2x=-12 is this equation independent inconsistent or dependent? __________________________________________ Solve the equation by graphing. 3x-y=4 3x-y=0 is this equation

Systems of Linear Equations

Please assist to understand the difference in these different methods. Please show work so I can follow the solution. Determine if the given ordered pair is a solution to the system: 12. 2x + y = 5 (4, -3) x - y = 1 22. 4x - y = -2 (-1, -2) 3x + y = -5 Solve each system of equations by the graphing method:

Systems of Equations and Inequalities and Absolute Values

How do you solve by the substituation method? x=y+3 3x-2y=4 would it be inconsistent, independent or dependent? ______________ word problem Ziggys famous yogurt blends regular yogurt that is 3% fat with its no-fat yogurt to obtain lowfat yogurt that os 1% fat. How many pounds of regular yogurt and how many pounds o

Linear Equations and Graphs

Please show work so I can understand how to solve. Need assistance with the following word problems: A. Given the following linear equation: 2x - 5y = 5 a. Graph the line for the given equation. b. Derive an equation for a line parallel to the given line passing through the origin (0 ,0). c. Graph the second line.

Linear Equations Word Problems

A cookie company needs 1 cup of sugar for every 40 cookies. Let C represent the total number of cups of sugar and let N represent number of cookies to be made. Write an equation relating C to N, and then graph the equation using C as the Y axis with a scale of 1 to 7 and the x axis represents N with a scale of 20 to 260. Plea

Linear Equations

Determine if the given ordered pair is a solution to the equation: 4. -3x + y = -2 (0,2) 6. 2x - y = -3 (-2, -1) Find the specified values: 8. 6x - 3y = 12 x-intercept & y-intercept 10. 4x - 2y = 6 slope & y-intercept Re-write the equations in the specified form: 12. y = 2x -3 write in standard form

Vectors : Linear Transformations

The following questions are from "Linear Algebra" textbook. Page 52: - Question Number: - 5,7,8,9. Page 54: -Question Number: - 27/b, 28, 29 Page 70: - Question Number: - 14, 15 & 17 Please mention each and every step. Thank you

Graphing Linear Equations

1.)how do you draw a line whose x- intercept is -7 and whose y-intercept is -6? 2.)how do you graph the line with equation y=-2x? 3.)how do you graph the line 2x+2y=13? 4.)how do you graph a line with the slope of -3 passing through the point(2,4)? 5.)how do you find a slope of a line with coordinates (18,13) and

Inequality and line equation

1.) The price of a personal computer is $2000. The markup is $150. What is the dealer cost? 2.) Solve the inequality 4y - 7 > 9y - 2. Use set-builder notation. 3.) Graph using slope and y-intercept method of y = (3/2)x - 3 4.) Graph using slope and y-intercept method of 5x + 5y = 10 5.) Graph the inequality

Linear Equations and Solving Equations

The function that relates weight in grams of a crystal (w) to the temperature t in degrees Fahrenheit in which it was grown is as follows (fictitious): W(t) = 0.8t + 12 Find w(-6). a. impossible to tell from info given b. less than 8 grams c. at least 8 grams but less than 10 grams d. at least 10 grams but less t

Systems of Equations with Three Variables and Real-Life Applications

Hello again ! trying to solve for x and Y in the following problems. please explain 1. a. X + Y=6 ; 2X + Y =8 b. 7X + 3Y=14 ; 5X + 9Y= 10 c. 4X + Y= 16 ; 2X + 3Y= 24 d. 12X + Y= 25 ; 8X - 2Y= 14 2. Suppose Bob owns 8000 shares of company X and 6000 shares of Company Y. The total value of Bobs holding of these

MATLAB Signals Theory- Linear Time - Inveriant Discrete Time System

A linear time-invariant discrete-time system has transfer function h(z)=((z^2)-z-2)/((z^2) + 1.5z-1) a. Use MATLAB to obtain the poles of the system. Is the system stable? Explain. b. Compute the step response. This should be done analytically, but you can use MATLAB commands like conv and residue. c. Plot the first seve

Basis and Dimension, Eigenvalues and Eigenvectors and Diagonalizability

Text Book: - Linear Algebra, Author: - Insel, 3rd Edition Following questions to be answered In page Number: - 52 & 53 : Questions: - 12, 21 In Page Number :- 54 :- Question :- 25 In page Number: - 247 :- Question : - 2 / c, d In Page Number: - 248 & 249 : - Question: - 3/ b,c. 4, 8/a, 11/a, b. 12/a In Page

Differential Equations : Bifurcations in Linear Systems

In Chapter 3, we have studied techniques for solving linear systems. Given the coefficient matrix for the system, we can use these techniques to classify the system, describe the qualitative behavior of solutions, and give a formula for the general solution. In this lab we consider a two-parameter family of linear systems. The g

Solving Systems of Equations

1. Solve each system by graphing. y = - 2/3 x 2x + 3y = 5 2. Solve each system by the substitution method. Determine whether the equations are independent, dependent, or inconsistent. 2x - y = 4 2x - y = 3 3. Write a system of two equations in two unknowns for each problem. Solve each system by substation.

MATLAB Signals - Conv and Transfer Function of System

1. A discrete-time system has the following unit-pulse response: h[n] = 0.5^n - 0.25^n for n >= 0 Correspondingly, the following difference equation describes the behavior of the system: y[n + 2] - 0.75y[n +1] + 0.125y[n] = 0.25x[n +1] a. Use the MATLAB command conv to calculate the response of the system to a unit ste

Systems of Linear Equations and Inequalities

I am at a total loss on these. Any assistance you could give me would be greatly appreciated. I have a total of 9 problems. Thanks a lot!! The start-up cost for producing widgets is $449, and each widget costs $91 to produce. What is the equation for this situation? Use X for # widgets produced and Y for cost. a. none of

Acute, Obtuse, Right or Straight Angles.

1. Along a straight shoreline, two lighthouses, A and B, are located 2000 feet apart. A buoy lies in view of both lighthouses, with angles 1, 2, and 3 as indicated. (Angle 1 is denoted by , angle 2 is denoted by , and angle 3 is denoted by .) A. By looking at the picture, do you think is an acute, obtuse, right, or a st

State-Space Representation

Consider the system defined by: (see attached file) where y is the output and u is the input of the system. Obtain a state-space representation of the system.