Please help me!! I HAVE to do good on this! I'll give you a medal

1.)Choose the equation below that represents the line passing through the point (-2, -3) with a slope of -6.

y = -6x - 15

y = -6x - 20

y = -6x + 15

y = -6x + 20

2.)Which of the following equations best represents the graph of f(n)?

f(y) = n

f(x) = n

x = f(n)

y = f(n)

3.)A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $135 for 100 minutes of usage and $375 for 500 minutes of usage. An equation can be written to show the relationship between the total minutes used (x) and the total monthly charges (y). Which of the following best describes the steps to draw the graph of y against x?

Draw a graph which joins the points (135, 100) and (375, 500) and has a slope = 0.6

Draw a graph which joins the points (100, 135) and (500, 375) and has a slope = 0.6

Draw a graph which joins the points (100, 135) and (500, 375) and has a slope = 1.67

Draw a graph which joins the points (135, 100) and (375, 500) and has a slope = 1.67

4.)A student needs to make a circular cardboard piece with an area between 154 square inches and 616 square inches. The function f(r) relates the area of the cardboard piece, in square inches, to the radius r in inches. Which of the following shows a reasonable domain for f(r)?

7

Question

Please help me!! I HAVE to do good on this! I'll give you a medal

1.)Choose the equation below that represents the line passing through the point (-2, -3) with a slope of -6.

y = -6x - 15

y = -6x - 20

y = -6x + 15

y = -6x + 20

2.)Which of the following equations best represents the graph of f(n)?

f(y) = n

f(x) = n

x = f(n)

y = f(n)

3.)A telephone company charges a fixed monthly rate plus a rate per minute of usage. The company charges $135 for 100 minutes of usage and $375 for 500 minutes of usage. An equation can be written to show the relationship between the total minutes used (x) and the total monthly charges (y). Which of the following best describes the steps to draw the graph of y against x?

Draw a graph which joins the points (135, 100) and (375, 500) and has a slope = 0.6

Draw a graph which joins the points (100, 135) and (500, 375) and has a slope = 0.6

Draw a graph which joins the points (100, 135) and (500, 375) and has a slope = 1.67

Draw a graph which joins the points (135, 100) and (375, 500) and has a slope = 1.67

4.)A student needs to make a circular cardboard piece with an area between 154 square inches and 616 square inches. The function f(r) relates the area of the cardboard piece, in square inches, to the radius r in inches. Which of the following shows a reasonable domain for f(r)?

7 < r < 14

154 < r < 616

all positive integers less than 7

all positive integers between 14 and 154

5.) If f(x) = 7x - 1, what does f(12) represent?

The value if x when (7x - 1) = 12

The value of (7x - 1) when x = 12

The value of 12 f(x) when x = 12

The value of f(x) when (7x - 1) = 12

6.)Choose the equation of the horizontal line that passes through the point (-5, 1).

y = -5

x = 1

y = 1

x = -5

7.) The first five terms of a sequence are shown below.

6, 9, 12, 15, 18

If the nth term of this sequence is represented by f(n), which of the following functions best represents this sequence?

f(n) = 6n - 3; n ≥ 1

f(n) = 6n + 3; n ≥ 1

f(n) = 3n + 3; n ≥ 1

f(n) = 3n - 3; n ≥ 1

anonymous · Answer

3) D
7) C