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kompoz [17]
1 year ago
6

Write this equation of a line in point slope form: slope 1/2; (3, -1)

Mathematics
1 answer:
Luda [366]1 year ago
6 0

Answer:

y + 1 = 1/2 (x - 3)

Step-by-step explanation:

Point-slope form of an equation is a shortcut, fill-in-the-blank way to write the equation of a line. All you need is slope (usually symbolized with an m) and a point (any point on the line)

Here's Point-slope:

y - Y = m (x - X)

The slope they gave you is 1/2, put that in for the m.

And also fill in 3 for the X and -1 for the Y. Because a point is (X,Y)

Just leave the first y as a y, right there. And leave the first x in the parentheses as an x. They are variables in the equation. They stay letters.

y - -1 = 1/2 (x - 3)

Simplify.

y + 1 = 1/2 (x - 3)

Minus a negative is the same as plus a positive, that's what happened there on the left. Also, when you write it, make sure the 1/2 is beside the parentheses on the right. The parentheses should not be on the bottom with the 2, but just beside the fraction.

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What is the equation, in slope-intercept form, of the line
OLga [1]

Answer:

y=1/3x_1/5=1/3×15=5_1/5×15=3. 5_3=2

7 0
3 years ago
PLEASE HELP..... I WILL GIVE BRAINLIEST!!
Yakvenalex [24]
For the first part:

Every shirt she grabs, will cost her dollars, so if she grabs 3 shirts, then the cost of the shirts is:

12+12+12=3(12)

With the same rationale, if she grabs 2 pairs of jeans, the cost of the jeans is:

19+19=2(19)

So, her total is:

3(12)+2(19)

If you subtract 3 from the total, then the expression is:

3(12)+2(19)-3=36+38-3=71

For the second part:

If she's paying 3 less for each shirt, then the cost of 3 shirts will become:

(12-3)+(12-3)+(12-3)=3(12-3)

In the same fashion, for the two jeans:

(19-3)+(19-3)=2(19-3)

So the expression for the total cost is:

3(12-3)+2(19-3)=36-9+38-6=59

For number three:

The amounts are different because the cost of the total purchase is different than the cost of each element that makes up the total purchase.

For number four:

If you're the owner, you want to give the smallest amount of discount (the one in part 1/a).

So you could clarify by saying there's 3 dollars of the TOTAL purchase's cost.
6 0
3 years ago
Im so confused rn i have no idea how to do this my teacher didnt teach us this
dimulka [17.4K]

Answer:

you use the mean method. and then round.

8 0
3 years ago
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PLEASE HELP ASAP! :(<br><br> Please help me find a, b, c, d!
s2008m [1.1K]

Answer:6 3 7 8 abcd and that order

Step-by-step explanation:

7 0
3 years ago
What is 173.22 divided by 4?
Kisachek [45]
43.305 or in Mixed Number is 43 61/200 or in improper Fraction is 8661/200
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3 years ago
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