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2 years ago

Not sure how to do this...

Mathematics

2 answers:

kumpel [21]2 years ago

3 0

Answer:

(4,5)

Step-by-step explanation:

count up to the opposite point by the x-axis and the y axis.

<em>hope this helps ! </3 ~ Alyssa. xoxo</em>

Finger [1]2 years ago

3 0

Answer:

y=-5/4x+5

Step-by-step explanation:

so you're going to find the slope first

count up or down from one point until you get to the line of the second

that makes it 5/4 but the equation is negative because the line is facing down on the right so the slope is:

-5/4

the y-intercept is just when the line touches the y axis thats 5

then you use this formula y=mx+b

m being the slope and b being the y intercept

y=-5/4x+5

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3 years ago

Help me please this is for a math test. <br> Thank you

zubka84 [21]

Answer:

x + 3y = -12

Step-by-step explanation:

y = mx + b

m is the slope = rise / run:

rise = 1

run = 3

the line is downhill so its negative

m = - 1 / 3

b is the y intercept which is when the line cross over the y axis: - 4

y = - 1/3x - 4

multiply both sides by 3

3y = -1x - 12

add x to both sides

x + 3y = -12

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1 year ago

Find two numbers that have a sum of 4 and a product of -5

nekit [7.7K]

Answer:

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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1 year ago

Pls only do this if yk it because i’m giving correct answer brainliest! :))

Leno4ka [110]

Answer:

$x=2+\frac{1}{2}\sqrt[]{21}$

$x=2-\frac{1}{2}\sqrt{{21}$

Step-by-step explanation:

$4x^2-16x-26=-21$

Add 21 on both sides.

$4x^2-16x-26+21=-21+21$

$4x^2-16x-5=0$

a=4

b=-16

c=-5

$x=\frac{-b\frac{+}{}\sqrt[]{b^2-4ac} }{2a}$

$x=\frac{-(-16)\frac{+}{}\sqrt[]{(-16)^2-4(4)(-5)} }{2(4)}$

$x=\frac{16\frac{+}{}\sqrt[]{256+80} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{336} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{2^2*2^2*21} }{8}$

$x=\frac{16\frac{+}{}2*2\sqrt[]{21} }{8}$

$x=\frac{16\frac{+}{}4\sqrt[]{21} }{8}$

---------------------------------------------------------------------------

$x=\frac{16}{8}+\frac{4\sqrt[]{21}}{8}$

$x=2+\frac{1}{2}\sqrt[]{21}$

---------------------------------------------------------------------------

$x=\frac{16}{8}-\frac{4\sqrt[]{21}}{8}\\x=2-\frac{1}{2}\sqrt{{21}$

6 0

2 years ago

Read 2 more answers

Not sure how to do this...​

Not sure how to do this...