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Travka [436]
2 years ago
6

8 The graph of y = a cos(x + b) for 0 2 1 60 120 180 240 300 360 -1 -2 (a) Find the valu

e of a and the value of b.
a
b =
(2)
Another curve C has equation y = f(x)
The coordinates of the minimum point of Care (4, 5)
(b) Write down the coordinates of the minimum point of the curve with
equation
(O y = f (2x)
(..........
..)
(y = f(x) - 7
(..........
I (2)
(Total for Question 8 is 4 marks)
*****
1
Mathematics
1 answer:
MAVERICK [17]2 years ago
8 0

Answer:

hw que no te he podido contestar por la tarde pero si te llamo en el tercero para que

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14. 
Angles 4 and 6 are supplementary, because they are on the same line. Supplementary angles add up to 180 degrees, and a line must be 180 degrees.

15.
Angles 1 and 8 are congruent, because they are alternate exterior angles

16.
m = y2 - y1 / x2 - x1
m = 7 - 2 / 4 - 5
m = 5 / -1
m = -5

17.
m = 3 - 3 / 7 - (-5)
m = 0 / 12
m = 0

18.
m = 1 - (-2) / 5 - (-4)
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19.
A = (0, 3) - B = (3,0)
m = 0 - 3 / 3 - 0
m = -3 / 3
<em>m = -1</em>
C = (0, -2) - D = (4, 2)
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20.
E = (1, 2) - F = (0, 0)
m = 0 - 2 / 0 - 1
m = -2 / -1
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Neither, because the slopes are different.

21.
I = (0, 1) - J = (2, -4)
m = -4 - 1 / 2 - 0
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m = 0 - (-2) / 4 - (-1)
<em>m = 2/5</em>
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22.
M = (-2, 2) - N = (2, 2)
Horizontal line
<em>m = 0</em>
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Horizontal line
<em>m = 0
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<em>
</em>23.
Angle 2 is congruent to angle 1 because of the alternate exterior angle theorem.
Angle 1 is congruent to angle 3 because of the vertical angle theorem.
Angle 2 is congruent to angle 3 because of substitution.
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Answer:

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