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vitfil [10]
3 years ago
15

What is the equation of the line in slope intercept form?

Mathematics
1 answer:
Debora [2.8K]3 years ago
3 0
The correct answer is D. Y=-1/3x-7
you can also look this up on desmos.com/calculator to be 100% sure!

i got D because the y-axis hits on -7 and the slope is negative so it can’t be A. it can’t be B either because the y-intercept is a +7. and it can’t be C because when doing rise/run, the slope isn’t going up/down 3. it is going up/down 1 and over 3.
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(05.08)Solve for x: 7 over 8 minus 1 over x equals 3 over 4.
NemiM [27]

If you are asking 7/8 - 1/x= 3/4,

first put 3/4 to 6/8 to make it easier.

Move the 7/8 over to the right. You will get 1/x=-1/8.

Simplify, it is x=-8.

Check=7/8 - 1/8=6/8

It checks out.

8 0
3 years ago
Read 2 more answers
How to do questions 19 and 20
Alexeev081 [22]

Answer & Step-by-step explanation:

Using the information given in the question we can form the following 3 equations (in the order of the first 3 sentences)

w = 2h (twice the price)

t = h - 4 ($4 less)

3w + 2h + 5t = 136 (total purchasing and cost)

We can solve all 3 equations for h first, by substituting the first two equations, into the third equations w and t

3(2h) + 2h + 5(h-4) = 136

Simplify

6h + 2h + 5h - 20 = 136

13h = 136 + 20

13h = 156

h = 156/13

h = $12

Using this information, we can solve for w and t

w = 2h

w = 2(12)

w = $24

And finally

t = h - 4

t = 12 - 4

t = $8

4 0
2 years ago
(11x + 8) + (8x + 12) =27
Tju [1.3M]

Answer:

11x + 8 +8x +12 =27  (drop the parenthesis, there's no actual need for them)

19x +20 =27 (i combined like terms and then subtracted 20 from both sides)

19x = 7  (divide both sides by 19 to get x alone)

x= 7/19 or 0.36842105 (the answer)

Step-by-step explanation:

7 0
3 years ago
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Explain how you would find the slope of the line y = 4.
Slav-nsk [51]

Answer:

The slope is 0.

Step-by-step explanation:

You could draw it on graphs paper . It will be a horizontal line passing through the point (0,4). y will always be 4 and x can be any value.

The slope of a horizontal line is 0.

4 0
2 years ago
Hey can you please help me posted picture of question
zimovet [89]
The parabola opens towards left, this means the squared term is y with negative coefficient.

The vertex is given to be the point (-1,-3). So, the general equation of the parabola will be like:

x=-a(y+1)^{2}-3

where a is any constant.

In the given options, only 1 such equation is available and that is option C.

So the answer to this question is option C
5 0
3 years ago
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