SAT Subject Test Mathematics Level 1

Example 3

SLOPE FORMULA

Slope   is  defined as  .

To  find    the slope   of  a   line    containing  the points  (x 1 ,  y 1 )   and (x 2 ,  y 2 ),

.

What does has no intersection with mean? It means that the lines are parallel,
which in turn means that the lines have the same slope. If you know the slope-

Which   of  the following   lines   has no  point   of  intersection    with    the line    y

=   4x  +   5?

1.

(A)

(B)

(C)

(D)

(E)