Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−1 intersect are the solutions of the equation 4x = 2x−1. (4 points) Part B: Make tables to find the solution to 4x = 2x−1. Take the integer values of x between −4 and 4. (4 points)

Part C: How can you solve the equation 4x = 2x−1 graphically? (2 points)

Part A: They intersect because they cross at the same point when graphed.

Part B:  

{,-4 -3, -2, -1, 0, 1, 2, 3, 4}

4x = {.0039, .015, .0625, ..25, 1, 4, 16, 64, 256}

2x−1 = {.031, .625, .125, .25, .5, 1, 2, 4, 8}

Part C:  4x = 2x−1  You would have to plug in each number until x equals the same number for both sides of the equation.. In this equation it would be x=-1.

Step-by-step explanation:

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