The general equation for depreciation is given by y = A(1 – r)t, where y = current value, A = original cost, r = rate of depreci
1 answer:
You might be interested in
the coordinates where the bridges must be built is and
.
<u>Step-by-step explanation:</u>
Here we have , a road follows the shape of a parabola f(x)=3x2– 24x + 39. A road that follows the function g(x) = 3x – 15 must cross the stream at point A and then again at point B. Bridges must be built at those points.We need to find Identify the coordinates where the bridges must be built. Let's find out:
Basically we need to find values of x for which f(x) = g(x) :
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
Value of g(x) at x = 3 : y=3x -15 = 3(3)-15 = -6
Value of g(x) at x = 6 : y=3x -15 = 3(6)-15 = 3
Therefore , the coordinates where the bridges must be built is and
.