Step-by-step explanation:
Is there a image or any numbers because I can't see any
So first you need to find the area of the building site which is:
length x width
39.5m x 32.5m
= 1283.75
We know that one square meter costs 185.50 euros.
1 = 185.50 euros
1283.75 = <u>238135.625 euros</u>
I'm not exactly that familiar with euros but I'm pretty sure that euros don't have 3 numbers after the point so the two nearest numbers are <u>238134.86 and 238135.86.</u>
sorry if this is wrong, but I hope it helps, if the euros part is wrong please correct me thanks!
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Answer:
A.
y
=
−
2
x
−
3
.
Explanation:
First, rewrite the equation in slope-intercept form:
y
=
m
x
+
b
.
−
x
+
2
y
=
4
⇒
2
y
=
x
+
4
⇒
y
=
1
2
x
+
2
So the slope of the given line is
m
=
1
2
.
Lines that are perpendicular have slopes that are negative reciprocals of each other. Meaning, if a line has slope
m
, then a line perpendicular to this has slope
m
*
=
−
1
m
. That means the slope of our perpendicular line is
m
*
=
−
1
1
/
2
=
−
2
.
Knowing the new slope and a point, we can find an equation for our perpendicular line by using the slope-point equation
y
−
y
1
=
m
(
x
−
x
1
)
, or by plugging in the given
(
x
,
y
)
point (and the new slope
m
*
) into
y
=
m
x
+
b
to find
b
for the new line.
y
−
y
1
=
m
(
x
−
x
1
)
⇒
y
−
1
=
−
2
[
x
−
(
−
2
)
]
⇒
y
−
1
=
−
2
[
x
+
2
]
⇒
y
=
−
2
x
−
3
or
y
=
m
x
+
b
⇒
1
=
−
2
(
−
2
)
+
b
⇒
1
=
4
+
b
⇒
b
=
−
3
∴
y
=
m
x
+
b
becomes
y
=
−
2
x
−
3
.
Step-by-step explanation:
Make an x and y table, and pick any values to plug in for x in the equation.
I will use the numbers from -2 to 2
Now plug in the values you picked for x into the equation to find its y-value
x = -2
y = 3x - 1 Plug in -2 for x
y = 3(-2) - 1
y = -6 - 1
y = -7
x = -1
y = 3x - 1
y = 3(-1) - 1
y = -3 - 1
y = -4
Do the same for the rest of the numbers, and graph each point and draw a line connecting them.