My choice to reflect this would be over the y axis. That would be (-1,3) for the bottom left hand corner on the original image.
Answer:
f(7) = 2
Step-by-step explanation:
3f(7) + f(7)g(7) = 18
3f(7) + f(7)(6) = 18
f(7) (3 + 6) = 18
f(7) x (9) = 18
f(7) = 2
The attached diagram is an interpretation of the question.
If there are other details, please post.
The distance AD is found by Pythagoras theorem, with
AD=sqrt(BC^2+(AB-DC)^2)=sqrt(21^2+2^2)=sqrt(441+4)=sqrt(445)
=
21.095 (to the third decimal place)
If you graph this, your first point will be at (0,5), as the ramp is at the warehouse door but 5 feet up. The second point is (10,0) as it is touching the ground but it's 10 feet away from the warehouse.
To find slope, you do (y2-y1)/(x2-x1).
When substituting in the variables, you get (0-5)/(10-0), which is -5/10, which is simplified to -1/2. Of course, that is when the warehouse is Quadrant II. If you look at it from another point of view, the slope will be positive so your answer is A) 1/2.
If this was unclear feel free to comment :)