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enyata [817]
3 years ago
14

I need help on these as well

Mathematics
1 answer:
kvv77 [185]3 years ago
6 0

Answer:

5. 2

6. -1

7. undefined

Step-by-step explanation:

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Pat created a scatter plot and drew a line of best fit, as shown.
Hunter-Best [27]
<h3>Answer:  Choice D</h3><h3>y = (-1/5)x + 7</h3>

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

Work Shown:

We will only focus on the two points that are on the regression line.

Those two points are (10,5) and (15,4)

Let (x1,y1) = (10,5) and (x2,y2) = (15,4)

Find the slope of the line through (x1,y1) = (10,5) and (x2,y2) = (15,4)

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

m = (4 - 5)/(15 - 10)

m = -1/5

m = -0.2

Plug m = -0.2, and  (x1,y1) = (10,5) into the point slope formula. Solve for y

y - y1 = m(x - x1)

y - 5 = -0.2(x - 10)

y - 5 = -0.2*x - 0.2*(-10) ... distribute

y - 5 = -0.2*x + 2

y - 5+5 = -0.2*x + 2 + 5 ... add 5 to both sides

y = -0.2*x + 7

y = (-1/5)*x + 7 .... convert -0.2 to -1/5

The equation y = (-1/5)x + 7 is in the form y = mx+b with m = -1/5 = -0.2 as the slope and b = 7 as the y intercept. The y intercept is where the graph crosses the vertical y axis. More specifically, the location of the y intercept in this case is at the point (0,7).

4 0
3 years ago
Write an equation of the line in slope-intercept form.<br><br><br><br><br><br> y = .
spayn [35]

Answer:

y=5/3x-2

Step-by-step explanation:

the equation for a line is y=mx+b, m is the slope the slope of this line is 5/3. B represents the y intercept, in this equation it is -2.

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How do I write 208,000,478 in expanded form
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all added together

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Answer: 1.75

7 ÷ 4 = \frac{7}{4} = 1.75

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2 years ago
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I need help. I have been trying to figure it out for days and can not do it.Polynomial Function
almond37 [142]
The zeros are -2, 1, and 2
If you graph it you can find out the rest
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