Answer:
you subtract 43 to 91 so then you get 48
Step-by-step explanation:
Use the vertex form,
y
=
a
(
x
−
h
)
2
+
k
y
=
a
(
x
-
h
)
2
+
k
, to determine the values of
a
a
,
h
h
, and
k
k
.
a
=
−
1
2
a
=
-
1
2
h
=
−
3
h
=
-
3
k
=
−
1
k
=
-
1
Find the vertex
(
h
,
k
)
(
h
,
k
)
.
(
−
3
,
−
1
)
Answer:
In order down the left side, ...
- y = 1/3x +2
- y = 1/2x +3
- y = 2x +6
- y = -2x +3
Step-by-step explanation:
To put a linear equation in slope-intercept form, you solve for y, then simplify.
<u>x -3y = -6</u>
Subtract x and divide by -3:
y = 1/3x +2
__
<u>2y -6 = x</u>
Add 6 and divide by 2:
y = 1/2x +3
__
<u>-x +(1/2)y = 3</u>
Add x and multiply by 2:
y = 2x +6
__
<u>2x +y = 3</u>
Subtract 2x:
y = -2x +3
_____
<em>Comment on the algebra</em>
Note that when we say add, subtract, multiply, or divide by something or other, we mean to <em>do that to both sides of the equation</em>. That is required by the properties of equality.
If you remember the rule: do the same thing to both sides of the equation, then algebra suddenly becomes much easier.
15 minutes because if you add 2/5 together 5 times you get 2 and you need 6 so 2+2+2=6 so you add 5+5+5=15 so your answer is 15.
D would equal to either 9 or -9