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makvit [3.9K]
3 years ago
12

Write the equation of a line whose slope is -2 and passes through (-1,6). Write the answer in slope-intercept form.

Mathematics
2 answers:
erica [24]3 years ago
4 0
We are given an (X, Y) in (-1, 6). We are also given a slope of -2.

Start by plugging all those values into the slope intercept equation.

6 = -2*-1 + B

Solve for B.

B = 4

Now, all you have to do is put it back into the equation again, this time not using the (X,Y) we had initially, but just the slope (-2) and our new "B" value (5).

The resulting equation looks like this:

y= -2x + 4

And that's the answer.
goblinko [34]3 years ago
3 0
Y = mx + b
slope(m) = -2
(-1,6)....x = -1 and y = 6
now we sub and find b, the y int
6 = -2(-1) + b
6 = 2 + b
6 - 2 = b
4 = b

so ur equation is : y = -2x + 4 <==
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A car travels 3 times around a traffic circle whose radius is 80 feet. What is the distance the car will travel? Use 3.14 for π
Harman [31]

Answer : Distance will be 1507.2 feet .

Explanation :

Since we have given that

Radius of circle = 80 feet

So,

Circumference of circle is given by

2\pi r=2\times 3.14\times 80=502.4 \text{ feet}

Since , a car travels 3 times around a traffic circle.

So,

\text{ Distance covered by the car will travel}= 3\times 502.4= 1507.2 \text{ feet }

So, Distance will be 1507.2 feet .

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3 years ago
Enter an algebraic equation for the sentence. Use x as your variable.
Eddi Din [679]

Answer:

4x-17=x/2+8

Step-by-step explanation:

7 0
2 years ago
A group of 485 people take a canoe trip. They fill up all avalible canoes that each hold 3 people with 273 people. The rest of t
Jobisdone [24]
Answer:
3c=273
c=91
2c= 212
C= 106
c= 91+ 106= 197
so they will need 197 canoes total

Why:
So first you have to determine a set variable to represent the number of canoes, I chose C. Then you make an equation to represent the number of canoes 273 people will use if they group into 3's, from this I got 3c=273. Solve for C and get 91.
The remainder of the group which is 485-273= 212 will use canoes in groups of 2's. To represent this, 2c=212. Solve for C and get 106. Combine 106 and 91 to get the total number of canoes.
4 0
3 years ago
Read 2 more answers
At the moment a certain medicine is injected, it’s concentration in the bloodstream is 120 milligrams per liter. From that momen
PSYCHO15rus [73]

Answer:

C(t)=120(0.7)^t

Step-by-step explanation:

4 0
3 years ago
What is the answer to this??
Firdavs [7]

Answer:

x=3

z=65

Step-by-step explanation:

6x+97 and 14x+73  are vertical angles which means they are equal

6x+97= 14x+73

Subtract 6x from each side

6x-6x+97= 14x-6x+73

97 = 8x +73

Subtract 73 from each side

97-73 = 8x+73-73

24 = 8x

Divide each side by 8

24/8 = 8x/8

3 = x

Now we need to find z

6x+97  and z are supplementary angles which means they add to 180

6x+97 +z = 180

6(3) +97 +z = 180

18+97+z=180

Combine like terms

115+z = 180

Subtract 115 from each side

115-115 +z=180-115

z = 65

3 0
3 years ago
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