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4 years ago

Y-intercepts and X-intercepts

Mathematics

1 answer:

MAVERICK [17]4 years ago

4 0

Answer:

the bottom with negative numbers are the point where you will start from, so for example if the problem in -4,1/2 then the starting point will be at -4 and the half will be on the middle line. if you don't understand and you have a more specific question reply with it!

Step-by-step explanation:

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Solve: 2 x + 5y + 5 = 0 <br> 2y=3x+17. <br> Find x and y

Yanka [14]

Answer:

x = -5 and y = 1

Step-by-step explanation:

a) 2x + 5y +5 = 0

a) 2x + 5y = -5

b) 2y = 3x + 17

b) y = 3/2x + 17/2

a) 2x + 5(3/2x + 17/2) = -5

a) 2x + 15/2x + 85/2) = -5

a) 19/2x = -5 - 85/2

a) 19/2x = -95/2

a) x = (-95/2) / (19/2)

x = -5

b) 2y = 3(-5) + 17

b) y = 2/2

y = 1

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2 years ago

Solving multi step equations -12 = 3 - 2k - 3k

34kurt

-12 = 3 - 2k - 3k

-12 = 3 - 5k

-15 = -5k

15 = 5k

k = 3

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3 years ago

4x-5y=20 find the slope

Irina18 [472]

$4x-5y=20 \\
-5y=-4x+20\\
y=\frac{4}{5}x-4$

It's $\frac{4}{5}$

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3 years ago

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Calculate the sum and enter it below 78 + (-89)

algol [13]

78 + (-89)

78 - 89

Answer: -11

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3 years ago

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-(3/4)+1 7/8 divided by 1/2 =n

VashaNatasha [74]

first off, let's convert the mixed fraction to improper fraction and then proceed, let's notice that by PEMDAS or order of operations, the multiplication is done first, and then any sums.

$\stackrel{mixed}{1\frac{7}{8}}\implies \cfrac{1\cdot 8+7}{8}\implies \stackrel{improper}{\cfrac{15}{8}} \\\\[-0.35em] ~\dotfill\\\\ -\cfrac{3}{4}~~ + ~~\cfrac{15}{8} \div \cfrac{1}{2}\implies -\cfrac{3}{4}~~ + ~~\cfrac{15}{8} \cdot \cfrac{2}{1}\implies -\cfrac{3}{4}~~ + ~~\cfrac{15}{4} \\\\\\ \cfrac{-3+15}{4}\implies \cfrac{12}{4}\implies 3$

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3 years ago