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kaheart [24]
3 years ago
15

7th grade Math please help quickly . . .

Mathematics
1 answer:
balu736 [363]3 years ago
4 0

Answer:

1st Question: C

2nd Question: D

Step-by-step explanation:

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Answer:

the period of the graph of 4cos(1/2x)-3 is twice as long as the period of 4cos(x)-3

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Answer: is If something is a function, every x-value, only has one (1) y-value. If the line x = 0 intersects the graph in two points, there are to values for y (instead of one). Therefore the graph is not a function of x.

Step-by-step explanation: answer is A

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Passes through (-8, -7), parallel to the graph of y=1/2x-3
KIM [24]

Answer:

y=\frac12x-3

The answer is the same line as given in the question.

Step-by-step explanation:

Hello!

Slope-intercept Form: y = mx + b

  • y = output
  • m = slope
  • x = input
  • b = y-intercept

Given our Line: y=\frac12x-3

  • slope = \frac12
  • y-intercept =3

Parallel lines have the same slope but a different y-intercept, so the second line should have a slope of \frac12.

To find the y-intercept, we plug in the x and y values from the point into a blank equation with the slope and solve for b.

  • y = \frac12x + b
  • -7 =\frac12 (-8) + b
  • -7 = -4 + b
  • -3 = b

The equation is y=\frac12x-3, hence the same line.

7 0
2 years ago
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