a). (20 x 80) + (20 x 6) + (7 x 80) + (7 x 6)
Answer:
A) 
Step-by-step explanation:
Hi there!
The given equations are written in point-slope form: 
where <em>m</em> is the slope of the line and 
is a point that falls on the line
Notice how the line is travelling infinitely down as x increases. This means that the slope is negative.
Therefore, the equation of the line is either A or B.
Now, let's look at A:
This equation suggests that the point (4,-7) falls on the line, which it does.
Therefore, the equation of the graph is .
I hope this helps!
717177Step-by-step explanation:
3/5 is smaller then 3/4(you can tell from denominators) 5/8 is smaller then 3/5, and 7/4 is greater then 1, so the only logical one is C. Hope this helped!
Answer:
x
+
y
=
2
, y
=
x
2
−
4
x
+
4
Replace all occurrences of
y
with x
2
−
4
x
+
4
in each equation.
x
2
−
3
x
+
4
=
2
y
=
x
2
−
4
x
+
4
Solve for
x
in the first equation.
x
=
2
,
1
y
=
x
2
−
4
x+
4
Replace all occurrences of
x with 2
in each equation.
y=0
x
=
2
Replace all occurrences of x
with 1
in each equation.
y
=
1
x
=
1
The solution to the system is the complete set of ordered pairs that are valid solutions.
(
2
,
0
)
(
1
,
1
)
The result can be shown in multiple forms.
Point Form:
(
2
,
0
)
,
(
1
,
1
)
Equation Form:
x=2
,
y
=
0
x
=
1
,
y
=
1
Step-by-step explanation:
