CPM Homework Help : AC Problem 4-93

Determine the coordinates of each point of intersection without graphing.

Hint (a):

Use the Equal Values Method.

Hint (a):

Subtract 2x from both sides.

Hint (a):

Subtract 1 from both sides.

Hint (a):

Divide by 2 on both sides.

$y = y \\ 2x − 3 = 4x + 1$

$−3 = 2x + 1$

$−4 = 2x$

Answer (a):

$\left(−2, −7\right)$

Hint (a):

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

$y = −4x − 2$

Hint (b):

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