Mathematics, 19.07.2020 01:01 eden1017
3. Given a system of two equations in two variables, replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solution. Show why this is true by solving the system of equations given. Justify the reason for each step. HINT: Use addition property of equality and multiplication property of equality in your answers. (8 points: 1 point for each question) 5x + 2y = 7 3x – y = 2 To solve the system using elimination, first multiply the bottom equation by 2. Write the new system of equations. (1 point) Why is this multiplication allowed? (1 point) What variable will be eliminated when the equations are combined after the multiplication? (1 point) Next, add the equations together. Your answer should be a single equation with one variable. (1 point) Why can you add the equations? (1 point) Solve the equation for x. (1 point) Substitute x back into one of the equations to solve for y. (1 point) What is the solution to the system of equations? (1 point)
Answers: 3
Mathematics, 21.06.2019 19:50
Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.
Answers: 3
Mathematics, 21.06.2019 20:00
M the table below represents a linear function f(x) and the equation represents a function g(x): x f(x)−1 −50 −11 3g(x)g(x) = 2x − 7part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points)part b: which function has a greater y-intercept? justify your answer. (4 points)
Answers: 3
Mathematics, 21.06.2019 22:10
In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2
Answers: 2
3. Given a system of two equations in two variables, replacing one equation by the sum of that equat...
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