Answer:
(
y
−
6
)
=
0
(
x
+
7
)
Explanation:
The point-slope formula states:
(
y
−
y
1
)
=
m
(
x
−
x
1
)
Where
m
is the slope and
(
x
1
y
1
)
is a point the line passes through.
Substituting the values from the equation gives:
(
y
−
6
)
=
0
(
x
−
−
7
)
(
y
−
6
)
=
0
(
x
+
7
)
Answer:
In 10 weeks of time, Brooke would earn $ 20.
Step-by-step explanation:
Here, according to the table:
The money saved in week 1 = $ 2 = $(1 x 2)
The money saved in week 2 = $ 4 = $ ( 2 x 2)
The money saved in week 3 = $ 6 = $ ( 3 x 2)
The money saved in week 4 = $ 8 = $ ( 4 x 2)
So, by the graph relation, we can see that:
The amount saved in n weeks = ( n x 2) dollars
So, the amount saved by Brooke in 10 weeks is:
Put n = 10, we get:
The money saved = 2 n = 2 x 10 = $ 20
Hence, in 10 weeks of time, Brooke would earn $ 20.
Answer:
The length of the first piece = 41 cm
Step-by-step explanation:
Let the length of the first piece = a
Let the length of the second piece = b
Let the length of the third piece = c
we are given the following:
b = 3a . . . . . (1) (The 2nd piece is 3 times as long as the 1st piece)
c = 6 + a . . . . (2) (the 3rd piece is 6 centimeters longer than the 1st piece)
a + b + c = 211 . . . . . (3) ( the yarn has a total length of 211 centimeters)
Next, let us eliminate two variables, and this can easily be done by substituting the values of b and c in equations 1 and 2 into equation 3. this is done as follows:
a + b + c = 211
a + (3a) + (6 + a) = 211 ( remember that b = 3a; c = 6 + a)
a + 3a + 6 + a = 211
5a + 6 = 211
5a = 211 - 6 = 205
5a = 205
∴ a = 205 ÷ 5 = 41 cm
a = 41 cm
Therefore the length of the first piece (a) = 41 cm
now finding b and c
substituting a into equation 1 and 2
b = 3a
b = 3 × 41 = 123
∴ b = 123 cm
c = 6 + a
c = 6 + 41 = 47
∴ c = 47 cm
Answer:
thanks thanks thanks thanks thanks for your points
Answer:
(4) y=(x-3)²-4
I dont have much evidence to give