F(x) = 7x − 13
To find f(-x) , just replace x with -x:
f(-x) = 7(-x) - 13
f(-x) = -7x -13
175.4 because 4 is the tenth place and 2 would round down
3.3 miles should be the answer
10 = 2.40 + .2x - take 2.4 from both sides
7.6 = .2x - take 2 from 7.6 for the tip
5.6 = .2x - divide both sides by .2
28 = x
this means that you can pay the taxi drives an additional 28 times with the .20 cents fee and still have 2 dollars left over
now multiply 28 by .1 miles which is 2.8 miles
add 2.8 miles to .5 miles which equals 3.3 miles
Answer:
C
Step-by-step explanation:
Perpendicular lines have the exact opposite slope of the other equation.
So the slope will be x or 1x. Plug in
-8 = 1(4) + b (b represents y-intercept) like y=mx+b
-8 = 4 + b (subtract 4 on both sides)
-12 = b
The equation is y = x - 12
C
solve
y + 8 = x - 4 (subtract 8 on both sides)
y = x - 12
