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3 years ago

Please help me find the slope of the line graphed below!

Mathematics

2 answers:

valentinak56 [21]3 years ago

8 0

Answer:

slope = - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (0, - 3) ← 2 points on the line

m = $\frac{-3-0}{0+1}$ = $\frac{-3}{1}$ = - 3

CaHeK987 [17]3 years ago

3 0

Here it is described. Its really easy.

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Find the equation of a line that contains the points (-8, 7) and (-8, -2). Please help!!!

FrozenT [24]

Answer:

x = -8

Step-by-step explanation:

(-8, 7) and (-8, -2)

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

m=(-2-7)/(-8+8)

m=(-9)/0

m = undefined slope or no slope

x = -8

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2 years ago

Special right triangles <br><br> Find the value of each missing variable

Shalnov [3]

Hi!

Rules for solving 30-60-90 triangles are as follows:

* The hypotenuse is double the short leg.

* The short leg times √3 is the long leg

To solve then, we divide 4√21 by √3 and get 4√7. That is x, and to get y we multiply by 2. That is 8√7.

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3 years ago

Pablo wants to spend $100 on clothing and he wants to purchase 6 additional clothing pieces for his wardrobe. Each pair of pants

andrew11 [14]

Answer:

A. $x+y=6...(1)$

$20x+15y=100...(2)$

B. Yes, Pablo can buy 2 pair of pants and 4 shirts.

Step-by-step explanation:

A. Let x be the number of pairs of pants and y be the number of shirts.

We have been given that Pablo wants to purchase 6 additional clothing pieces for his wardrobe. We can represent this information as:

$x+y=6...(1)$

We are also told that each pair of pants costs $20 and each shirt costs $15. So the cost of x pairs of pants will be 20x and cost of y shirts will be 15y.

As Pablo wants to spend $100 on clothing, so we can represent this information as:

$20x+15y=100...(2)$

Therefore, the system of equation representing the given situation will be:

$x+y=6...(1)$

$20x+15y=100...(2)$

B. To find if Pablo can buy 2 pair of pants and 4 shirts we will substitute x=2 and y=4 in our both equations.

$2+4=6$

$6=6$

$20*2+15*4=100$

$40+60=100$

$100=100$

We can see that x=2 and y=4 satisfies our both equation, therefore, Pablo can buy 2 pair of pants and 4 shirts.

4 0

3 years ago

(y-x)(y+x) equals to<br>

Len [333]

It equals y^2+yx-yx-x^2

6 0

3 years ago

Taylor needs to repair her car but cannot spend more than $260 for the repairs. The part needed for the repair will cost $80 and

Oksanka [162]

Answer: 6 hours

Step-by-step explanation:

Taylor cannot spend over $260.

Subtract the cost of the part needed for the repair:

= 260 - 80

= $180

$180 is left for fixing the car after buying the part.

As the labor costs $30 and now she cannot exceed $180 for labor, the total number of hours the mechanic can work is:

= 180 / 30

= 6 hours

6 0

3 years ago