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Lera25 [3.4K]
1 year ago
13

(a)For an algebra class, all students took a Unit 5 test. Their scores and the amount of hours they studied are contained in the

graph belowa student. A trend line (line of best fit) is given.Time Spent Studying(Hours)a) For the trend line,what is the slope?b) For the trend line,what is the y-intercept?c) Create a slope-intercept equationfor the trend line:

Mathematics
1 answer:
FromTheMoon [43]1 year ago
3 0
\begin{gathered} x_1=0,y_1=50,x_2=2,y_2=70 \\ a)\text{ }\Rightarrow m=\frac{70-50}{2-0}=10(slope) \\ b)y-50=10(x-0) \\ y-50=10x \\ y=10x+50 \\ Y-\text{intercept is}\Rightarrow50 \\ c)y=10x+50(\text{slope}-\text{intercept equation)} \end{gathered}

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What is the answer to this question?
WARRIOR [948]

Answer: Lower right corner

============================================

Explanation:

The information that the temperature rises 3 degrees per hour will tell us the slope here. The slope is rise/run = 3/1 = 3. Each time we move up 3 on the y axis, we move 1 spot to the right.

As you can see in the bottom right hand corner graph, we start off at a temperature of 20 degrees. This is the point (x,y) = (0,20)

Then one hour later (x = 1), the temperature y bumps up to y = 23. Another hour passes by (x = 2) and y becomes y = 26. And so on.

3 0
3 years ago
a train is traveling from New Orleans to Memphis at a constant speed of 79 miles per hour.New Orleans and Memphis are 395.1 mile
alexdok [17]
Just use the formula time = distance / speed

395.1/79= 5.001

It will take the train approximately five hours to reach Memphis
5 0
3 years ago
30 points please I really need help
alexandr402 [8]

Answer :

$38 + $2(n) where n is the no. of cars.

Step-by-step explanation:

He earns $38 daily which is fixed and additional $2 wage depends on the no. of cars which means no. of cars will determine how many $2's he earns.

25 cars = $38 + $2 (25) = $88

30 cars = $38 + $2 (30) = $98

35 cars = $38 + $2 (35) = $108

40 cars = $38 + $2 (40) = $118

8 0
3 years ago
GIVING BRAINLIEST!<br><br> Solve for y: 3x - y = 14<br><br> Thank you~
ValentinkaMS [17]
To solve y, we need to make y the only value on the left hand side of the equation:

3x - 3x - y = 14 \\  3x - 3x - y = 14 - 3x \\  - y = 14 - 3x \\ y =  - (14 - 3x) \\ y =  - 14 + 3x
Therefore the value of y = -14+3x.

Hope it helps!
8 0
3 years ago
Which of the following are polynomials?
White raven [17]

Answer:

69,420

Step-by-step explanation:

I like memes

7 0
3 years ago
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