Select the statement in if-then form.
two perpendicular lines intersect to form right angles.

a. if two lines intersect, then the lines form right angles.
b. if two perpendicular lines intersect, then the lines form right angles.
c. if two lines intersect, then the lines are perpendicular & form right angles.
d. if two perpendicular lines do not intersect, then the lines do not form right angles.

If two perpendicular lines intersect, then the lines form right angles.

Step-by-step explanation:

Hypothesis followed by a conclusion is called an If-then statement or a conditional statement.  

Notation: p→q

This is read as - if p then q.

Given Statement : Two perpendicular lines intersect to form right angles.

So, the statement in if-then form using hypothesis

If Two perpendicular lines intersect then the lines form right angles.

So, it satisfies p→q

So, Option B is true

Hence the statement in if-then form is If two perpendicular lines intersect, then the lines form right angles.

-14

step-by-step explanation:

2x2 – 2(x+4)

=2x2-2（5+4）

=4-2×9

=4-18

=-14