Help please I’m so confused lol

The scatter plot shows the average starting salaries for graduates of 8 universities along with the annual tuition costs for tho

krok68 [10]

The slope of the trend line is 0.90 ($900), which represents an increase in salary of $900 for every $1,000 increase in annual tuition cost. (Third Option).

Recall:

Slope of a trend line usually depicts a unit rate between two variables.

The equation of a trend line is usually represented in slope-intercept form as, y = mx + b.

Where, m is the slope, x and y are the two variables that are changing, while b is the initial value.

Given the equation representing the trend line as, s = 0.90c + 26.4

The slope of the trend line would be 0.90, which is $900.

This means that, there is an increase in salary of $900 for every $1,000 increase in annual tuition cost. (Third Option).

Learn more here:

brainly.com/question/15069679

5 0

2 years ago

I need help ASAP. I need help can someone explain and can anyone tell me the answer please . I’ll give u anything u want

AleksAgata [21]

<h3>Answers:</h3>

Domain: $(-\infty, \infty)$ which is the set of all real numbers
Range: $[3, \infty)$ which is the set of y values such that $y \ge 3$
x intercepts: none
y intercept: only one y intercept and it is at (0,7) this is ordered pair notation and not interval notation
Interval positive: $(-\infty, \infty)$
Interval negative: none
Interval increasing: $(-2, \infty)$
Interval decreasing: $(-\infty, -2)$
Average rate of change over [-2,0] is 2

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

Explanation:

The domain is the set of all real numbers. This is because the graph goes on forever to the left and right. We can use any x value we want as an input. There are no restrictions to worry about such as to prevent dividing by zero errors.

To say "all real numbers" in interval notation, we write $(-\infty, \infty)$ which is another way of saying $-\infty < x < \infty$

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The range in interval notation is $[3, \infty)$ since y = 3 is the smallest y output possible, and we could have larger y values as well. So basically $y \ge 3$ can be used to describe the range without saying much else.

Note the use of a square bracket to include 3 as part of the interval.

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There are no x intercepts because this graph does not cross the x axis. The lowest point is at (-2,3) so there's no way we could reach y = 0. Put another way, y = 0 is not part of the range so we cannot have any x intercepts.

There is one y intercept and it is at (0,7) where the graph crosses the y axis. For any function, the max number of y intercepts is 1.

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When it says "interval positive", its asking "which part(s) of the graph are above the x axis?". That would be the entire graph meaning we have the interval $(-\infty, \infty)$ . Every point on this V shaped curve is of the form (x,y) where y is positive.

So this means that we do not have any points with a negative y value, and therefore the answer to "interval negative" is none.

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Now onto the "interval increasing". This is similar to the previous section, but now we're looking when the graph is going uphill as we read from left to right. This happens on the interval $(-2, \infty)$ or put another way when x > -2.

The graph goes downhill whenever x < -2. So that's why the answer for the "interval decreasing" is $(-\infty, -2)$

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Note the points (-2,3) and (0,7) are on the V shaped graph. These points have x coordinates of x = -2 and x = 0, which are the endpoints of the interval we're focusing on.

Compute the slope of the line through those two points

m = (y2-y1)/(x2-x1)

m = (7-3)/(0-(-2))

m = (7-3)/(0+2)

m = 4/2

m = 2

The positive slope means the line goes uphill as we read from left to right

The average rate of change on the interval [-2, 0] is the value 2

In other words, we go up 2 units each time we move to the right 1 unit.

8 0

3 years ago

Simplify −0.6(−6.3) answer??

Leno4ka [110]

3.78
All you need to do is plug in the numbers to your calculater, but since I'm guessing your in grade school, and they don't allow calculaters yet, you would need to understand that when two negatives multiply each other, they become positive, so you can just put
0.6
x 6.3
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and then just multiply as usual (ignore the decimals for now)
and then you would get 378.
Now, what you would do is because there is too decimal points in the two numbers you are multiplying, you put them into 378, making it 3.78.]

I'm sorry if it was confusing, I hope it helped!

7 0

3 years ago

Read 2 more answers

What do you do when adding and subtracting fractions?01

PIT_PIT [208]

You must have a common denominator, or same denominator.

6 0

3 years ago

Read 2 more answers

Rewrite the following equation in slope-intercept form. 17x + 15y = 5 Write your answer using integers, proper fractions, and im

omeli [17]

Answer:
y = $\frac{-17}{15} x$ + $\frac{1}{3}$

Explanation:
The slope-intercept form of the equation has the following formula:
y = mx + c
where:
m is the slope
c is the y-intercept

The given is:
17x + 15y = 5

To put it in the slope-intercept formula, we should isolate the y as follows:
17x + 15y = 5
15y = -17x + 5
y = (-17/15) x + (5/15)
y = $\frac{-17}{15} x$ + $\frac{1}{3}$
where:
m is the slope = -17/15
c is the y-intercept = 1/3

Hope this helps :)

7 0

3 years ago