Home > AC > Chapter 4 > Lesson 4.2.3 > Problem 4-93
4-93.
Determine the coordinates of each point of intersection without graphing. Homework Help ✎
y = 2x − 3
y = 4x + 1
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.