SOLUTION: Part A: Explain why the x-coordinates of the points where the graphs of the equations y= 2-x and y = 8x+4 intersect are the solutions of the equation 2-x=8x+4. (4 points) Part B

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Part A: Explain why the x-coordinates of the points where the graphs of the equations y= 2-x and y = 8x+4 intersect are the solutions of the equation 2-x=8x+4. (4 points) Part B      Log On


   

Question 1091642: Part A: Explain why the x-coordinates of the points where the graphs of the equations y= 2-x and y = 8x+4 intersect are the solutions of the equation 2-x=8x+4. (4 points)
Part B: Make tables to find the solution to 2-x=8x+4 . Take the integer values of x between −3 and 3. (4 points)
Part C: How can you solve the equation 2-x=8x+4 graphically? (2 points)
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
y= 2-x and y = 8x+4
Are two equations which may have a solution or INTERSECTION POINT.

2-x=8x+4
Is the single equation in one variable which occurs if you substitute for y in the previously given system of equations. You can solve this single equation for x, and use this value to find y; and then you have the SOLUTION to the previously given system.