Each square on the grid represents 1 km2. what is the approximate area of this park?

a.

about 30 km2 to 40 km2

b.

about 45 km2 to 55 km2

c.

about 60 km2 to 70 km2

We take all the square on the side equaling 10 and the top equaling 8, this gives us 80 total squares. Since there are 20 squares without any portion of the park in them and there are an additional 12 with a portion of the park we divide by 2 and are left with 6.
80-26=54, so the area of the park is 45km² to 55km²

An x-intercept of 3
→
(
3
,
0
)
is a point on the line
A y-intercept of (-2)
→
(
0
,
−
2
)
is a point on the line
The slope of the line is given by
m
=
Δ
y
Δ
x
=
0
−
(
−
2
)
3
−
0
=
2
3
The slope-intercept form of the equation of a line is
y
=
m
x
+
b

where
m
is the slope and
b
is the y-intercept.
Therefore the equation of this line can be written as
y
=
2
3
x
−
2
If you want to "clear" the fraction this could be re-written as
3
y
=
2
x
−
6