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2 years ago

What is the slope of the graphed line? PLEASE HELP! A.-5/4 B.5/4 C.-4/5 D.4/5

Mathematics

2 answers:

Tpy6a [65]2 years ago

7 0

Answer:

It should be -4/5.

Step-by-step explanation:

if you take two points that are obvious, like the two intercepts, you can then use the formula (y2-y1)/(x2-x1) and plug in the points.

y intercept = (0,2)

x intercept = (2.5, 0)

(0-2)/(2.5-0)= -2/2.5 = -0.8 = -4/5

professor190 [17]2 years ago

4 0

Answer:

C.) -4/5

Step-by-step explanation:

First find two points where the line directly meets points on the map, I used (0,2) and (5,-2).You start with rise-over-run, because this has a negative rise is -4 (numerator). The run is 5 (denominator). so -4/5

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Alborosie

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2 years ago

3. Convert 0.002 kilojoules to decijoules:

k0ka [10]

Answer:

20 is the answer.

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2 years ago

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Find a point-slope form for the line with slope 1/5 and passing through the point (-4,-9).

sattari [20]

Answer:

y + 9 = $\frac{1}{5}$ (x + 4)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = $\frac{1}{5}$ and (a, b) = (- 4, - 9) , thus

y - (- 9) = $\frac{1}{5}$ (x - (- 4) ) , that is

y + 9 = $\frac{1}{5}$ (x + 4)

3 0

2 years ago

Analyze Corey’s work to find his error. What is Corey’s mistake? He substituted 80 for x instead of y. He should have added 88.2

Anni [7]

x is the temperature and y is the number of swimmers. If there are 80 swimmers, then y = 80 instead of x = 80

This is how Corey should have solved

y = 1.505*x - 88.21

80 = 1.505*x - 88.21 <--- replace y with 80

1.505*x - 88.21 = 80

1.505*x = 80 + 88.21 <--- add 88.21 to both sides

1.505*x = 168.21

x = 168.21/1.505 <--- divide both sides by 1.505

x = 111.767

x = 111.8

If there are 80 swimmers at the pool, then the possible outside temperature is roughly 111.8 degrees F. This temperature seems awfully large, so it's possible that Corey's regression equation has limited scope; in other words, it isn't too useful if x is outside a given interval

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PLEASE SEE THE ATTACHMENT 

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3 years ago

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

dalvyx [7]

Answer:

The answer would be: D. (1,2) and (2,-1)

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2 years ago

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