Answer:

Step-by-step explanation:
Step 1
Find the slope of the line EF
we have

The slope of the line EF is equal to

Step 2
Find the slope of the line perpendicular to the line EF
we know that
If two lines are perpendicular, then the product of its slopes is equal to minus one
so

we have
-----> slope of the line EF
Find the value of m2
substitute


therefore
the equation
could be an equation for a line that is perpendicular to line EF
1. was having
2.correct
3.knew
4.correct
Answer:
ANSWER IS A I THINK
Step-by-step explanation:
Y= 1/2x-2
sybtract x from left to right
divide both side by -2
9514 1404 393
Answer:
y = 4x -7
Step-by-step explanation:
Rearranging the slope-intercept for equation, we can find the intercept:
y = mx +b
y -mx = b . . . . . subtract mx
We know the slope of the parallel line is the same as that of the given line (m=4), so we only need to find 'b'.
b = 9 -4(4) = -7
The desired equation is ...
y = mx +b
y = 4x -7