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3 years ago

Find the slope of the line through (-1,1) and (3, -4)

Mathematics

1 answer:

jarptica [38.1K]3 years ago

7 0

Answer:

= -5/4

Step-by-step explanation:

The slope through two points can be found by

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

= (-4-1)/(3--1)

= (-4-1)/(3+1)

= -5/4

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Anyone know how to do this?

Lera25 [3.4K]

Answer:

Part A) 25

Part B) 225

Step-by-step explanation:

Part A

The slope of the graph gives us the mile per gallon of the car.

Recall that the slope of the graph is rise over run.

$m = \frac{200}{8} = 25$

Therefore car gets 25 miles per gallon

Part B) Since we know the slope of the direct variation line, we substitute into y=kx to get:

$y = 25x$

To find the number of miles the car travels using 9 gallons, we substitute x=9 to get:

$y = 25 \times 9$

This gives us 225 miles

8 0

2 years ago

Solve for x. 2(x - 4) = 6(x + 2) -2 -1 -5 4

Iteru [2.4K]

Distribute on both sides

2x - 8 = 6x + 12

Move x to one side

-20 = 4x

Divide by 4

-5 = x

8 0

2 years ago

I need help please (+5)+(-2)=

jasenka [17]

That is basically 5 - 2 I believe so the answer is 3.

4 0

2 years ago

Find the selling price for a case of Newman's Own® special blend coffee that costs the retailer $35.87 if the markup is 22% of t

mote1985 [20]

Answer:

The selling price is $46 approx.

Step-by-step explanation:

The cost price is = $35.87

Markup is 22% of selling price.

Let the selling price be = 100%

So, 100%-22%=78% = 0.78

So, solution is = $35.87/0.78=45.98$ ≈ $46.

Hence, the selling price is $46 approx.

4 0

3 years ago

When a moving object collides with an object that isn’t moving, what happens to the kinetic energy of each object?

djyliett [7]

The kinetic energy transfers from the moving ball to the non-moving ball.

6 0

2 years ago