3 years ago

Geometry. 20 POINTS.

Mathematics

1 answer:

____ [38]3 years ago

3 0

Answer:

A is correct. (you chose correctly)

Step-by-step explanation:

Parallel lines always have the same slope, so we know it's either a or b because the both have the slope of 1/4. When you plug -1, 5 into the equation you chose, you get 0=0, so that is the correct one.

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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

Nonamiya [84]

the coordinates where the bridges must be built is $(3,-6)$ and $(6,3)$ .

<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) :

⇒ $f(x)-g(x)=0$