Richard planted some grass on a rectangular plot of land which measures 12 meters by 8 meters. he left a margin of 0.5 meters around the grass , as shown in the figure below. find the area of land covered by grass.

answer: 100

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.