For 90° clockwise rotation, (x, y) becomes (y, -x).
Your rotated point is (2, 3).
Yes, as the value of x increases so does the value of y hence they are (directly) proportional
When the diagonals of a quadrilateral are perpendicular, the area of that quadrilateral is half the product of their lengths.
.. A = (1/2)*d₁*d₂
Substituting the given information, this becomes
.. 58 in² = (1/2)*(14.5 in)*d₂
.. 2*58/14.5 in = d₂ = 8 in
The length of diagonal BD is 8 in.
check attached file it has the answers
3x =-18
X= -12
Answer:
the total cost would be $45.2