a. 
trust me it's the correct answer :)
The answer is -7.4 because you switch from positive to negative
Y = 1/4x - 1....the slope here is 1/4....but for a perpendicular line we need a negative reciprocal slope...all that means is " flip " the slope and change the sign. 1/4....flip it....4/1.....change the sign....-4/1 or just -4. So our perpendicular line will have a slope of -4. The only one in ur answer choices with a slope of -4 is D.....so ur answer has to be D.
Hi.
Your answer is going to be
C.) 33
Hope this helps! :)
44x10^-2
or in other words
44 times 10 to the -2nd power
