Answer: the answer to you question is c
To find the equation of a slope, you use the following equation:
- y = m(
- x)
All you do now is substitute in the value for the gradient, y and x, like so:
Note: gradient = 
, y = -4, x = 3
- y = m( - x)
y - - 4 = ( x - 3) <em> ( note, 2 negatives make a positive)</em>
y + 4 = ( x - 3)
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Answer
C ) y + 4 = ( x - 3)
The answer is A. this is because your are multiplying by 9 throughout
Answer:
16.5 ft by 25.5 ft
Step-by-step explanation:
Let w represent the width of the garden in feet. Then w+9 is the garden's length, and w(w+9) represents its area.
The surrounding walkway adds 8 feet to each dimension, so the total area of the garden with the walkway is ...
(w+8)(w+9+8) = w^2 +25w +136
If we subtract the area of the garden itself, then the remaining area is that of the walkway:
(w^2 +25w +136) - (w(w+9)) = 400
16w + 136 = 400 . . .simplify
16w = 264 . . . . . . . . subtract 136
264/16 = w = 16.5 . . . . . width of the garden in feet
w+9 = 25.5 . . . . . . . . . . .length of the garden in feet
