need some help with SAT math

Test Preparation SAT Preparation
1

<p>Ok</p>

<p>If x=yz, 1/2y=w, and z=4w, then in terms of x, what does w equal?</p>

<p>On the coordinate plane, Line LM passes through the origin. If line LM is perpendicular to line RS and they intersect at (5,3), where does line RS cross the x-axis?</p>

2

<p>For the first one, you can take the first equality (x=yz), replace the y with 2w and the z with 4w. So you get x = 2w * 4w ---- x = 8(w squared)</p>

<p>EDIT: My bad. You need it in terms of w. So (w squared) = x/8, w = (square route of (x/8)</p>