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Anika [276]
3 years ago
9

Write the equation of a line in slope-intercept form that passes through the given points. Through: (1,3) and (2,7)

Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0

Answer:

y = 4x - 1

Step-by-step explanation:

(1, 3) ; (2 ,7 )

Slope =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{7-3}{2-1}\\\\=\frac{4}{1}\\\\= 4\\\\\\y - y_{1} = m(x -x_{1})\\\\y - 3 = 4(x - 1)\\\\y - 3 =4x - 4\\ y = 4x - 4 + 3\\y = 4x - 1

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Find all values of the variable x for which the rational expression is undefined.
SashulF [63]

Answer:

Step-by-step explanation:

8x+9/x^2-13x+42

Write  8 x  as a fraction with denominator 1

8x+9/x^2-13x+42

then we multipuly 8x/1  by x^2/x^2

5 0
2 years ago
Fabian harvests 10 pounds of tomatoes from his garden he needs 2 2/5 pound to make a batch of soup. If he sets aside 2.8 pounds
dusya [7]
He can make 3 batches of soup.

Starting with 10 pounds of tomatoes and taking out the number of pounds he sets aside for spaghetti sauce, 2.8, we have:
10-2.8 = 7.2 pounds left.

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6 0
3 years ago
What is 10x-3(2x-4)=8
RSB [31]

Answer: x=-1 is the answer

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which of the following is the quotient of the rational expression 4x/2x-1 divided by 3x+2/x+5
expeople1 [14]

Answer:

Step-by-step explanation:

7 0
2 years ago
Simply please “picture”
oksian1 [2.3K]
<h3>Answer: (-infinity, 7]</h3>

=====================================

Explanation:

The first interval (-infinity, 3) describes any number less than 3, so we can write x < 3 in short hand (where x is the unknown number).

The second interval (-1, 7] means we start at -1 and stop at 7. We do not include -1 but include 7. So we say that -1 < x \le 7 (ie x is between -1 and 7; exclude -1, include 7)

If you were to graph each ona number line, you would see that the too intervals have overlapping parts. The right most edge extends out as far as x = 7. There is no left most edge as it goes onforever that direction.

Therefore, the to intervals combine to get x \le 7 which turns into the interval notation answer of (-infinity, 7]

-----------

It might help to think of it like this: x < 3 and -1 < x \le 7 say "x is some number that is less than 3, or it is between -1 and 7". So x could be anything less than 7, including 7 itself.

4 0
3 years ago
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