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ollegr [7]
3 years ago
10

Find the equation of the line. Use exact numbers Y= __ x+ __

Mathematics
1 answer:
nika2105 [10]3 years ago
5 0

Answer:

y = 3/4x -2

Step-by-step explanation:

slope = rise/run = 3/4

y intercept is where the line crosses the y axis, it crosses at -2

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Winter temperatures tend to be cold in the city of Johnstown. The table of values represents the temperature of Johnstown during
trapecia [35]

Answer:

Part A Part B Part C explained

Step-by-step explanation:

PART A: Extrema: relative minimums (4,-2) and maybe (7,-3) (uncertain because it’s an endpoint), relative maximums (6,0) and maybe (1,6) (uncertain because it’s an endpoint)

Zeros: (6,0), somewhere between t = 3 and t = 4 since the graph changes from positive to negative, and somewhere possibly between t = 6 and t = 7 unless the graph hits (6,0) and stays negative.

End behavior: We can guess that as x approaches infinity, the functions approaches negative infinity, and as x approaches negative infinity, the function approaches infinity.

Intervals of increase and decrease: Increasing on (4, 6), decreasing on (1, 4) and (6, 7)

PART B: The relative minimums indicate that the two lowest temperatures occurred on day 4 at -2°F and day 7 at -3°F. The relative maximums indicate that the weekly highs were day 1 at 6°F and day 6 at 0°F.

The zeros of the function represent when the temperature in Johnstown was 0°F. This happened sometime between days 3 and 4 and on day 6.

In the context of the problem, it doesn’t make sense to go an infinite number of degrees below zero. And, the end behavior is ignored because of the restricted range.

The intervals of increase indicate when the temperature is rising, and the intervals of decrease indicate when the temperature is dropping. The intervals where the values are positive indicate when the temperature is above 0°F. The intervals where the values are negative indicate when the temperature is below 0°F.

PART C: The domain is restricted to the number of days the town recorded the temperature. So, the domain is [1, 7].

The range represents the range of temperatures of Johnstown over the course of one week. So, the range is [-3, 6].

6 0
3 years ago
Will give brainliest if correct.
suter [353]

┐( ∵ )┌

I think it's 4x? I'm not up to that level of math yet.

6 0
3 years ago
What is the slope of this line?
jeyben [28]

9514 1404 393

Answer:

  1/4

Step-by-step explanation:

The slope can be found using the slope formula with the two left-most marked points:

  m = (y2 -y1)/(x2 -x1)

  m = (6 -5)/(0 -(-4)) = 1/4

The slope of the line is 1/4.

6 0
3 years ago
Compare these two functions.<br> Which function shows a greater rate of change?
nata0808 [166]

Answer:

It's B

Step-by-step explanation:

"Brainlypatrol" is deleting my answers. >:(

5 0
2 years ago
Read 2 more answers
I NEED REAL HELP QUICKLY please
skad [1K]

Answer:

hold on its its.............oh yeah 21

6 0
3 years ago
Read 2 more answers
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