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Home > AC > Chapter 4 > Lesson 4.2.3 > Problem 4-93

4-93.
  1. Determine the coordinates of each point of intersection without graphing. Homework Help ✎

    1. y = 2x − 3

      y = 4x + 1

    2. y = 2x − 5

      y = −4x − 2

Use the Equal Values Method.

Subtract 2x from both sides.

Subtract 1 from both sides.

Divide by 2 on both sides.

y = y
2x − 3 = 4x + 1

−3 = 2x + 1

−4 = 2x

(−2, −7)

Follow the hints and steps used in part (a).

Use the value you found for x and substitute into one of the original equations to solve for y.