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Firlakuza [10]
3 years ago
9

Find the equation of the line with slope =8 and passing through (3,21) write your equation in the form y=Mx+b

Mathematics
1 answer:
stiks02 [169]3 years ago
4 0

Answer: y = 8x -3

Step-by-step explanation:

we know the slope already which is 8.

so the equation is: y = 8x + b

subsutite the x and y to get the value of b

21 = 8(3) + b

21 = 24 + b

b = -3

So the equation is: y = 8x -3

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38b/-19<br><br> please help me
Natasha2012 [34]
You didn't write what to do with the fraction but I think you meant to ask to simplify it:
38b/-19
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-2b
7 0
3 years ago
HELP ME PLEASE WILL MARK BRAINLIEST
kherson [118]

Answer:

Bottom Left

Step-by-step explanation:

Break up the numbers to 7,  and -8.

Break up the fractions to 1/5 and -3/5.

4 0
3 years ago
Read 2 more answers
A company is deciding which box to use for their
AnnZ [28]
Total surface area of first box = 2(8 * 6.25) + 2(8 * 10.5) + 2(6.25 * 10.5) = 2(50) + 2(84) + 2(65.625) = 100 + 168 + 131.25 = 399.25 sq. ins

Total surface area of second box = 2(9 * 5.5) + 2(9 * 11.75) + 2(5.5 * 11.75) = 2(49.5) + 2(105.75) + 2(64.625) = 99 + 211.5 + 129.25 = 439.75 sq. ins

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4 0
3 years ago
Value of the expression when n=3<br>-2n(5+n-8-3n)<br>​
Semenov [28]

Answer:

54

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Substitute n into the equation:

-2(3)[5+3-8-3(3)]

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7 0
3 years ago
identify an equation in point-slope form for the line perpendicular to y=-4x-1 that passes through (-2,7)
german

I find it simplest to convert to standard form, find the perpendicular, convert back.

y = -4x - 1

For standard form we move the x term to the left side:

4x + y = -1

The perpendiculars are given by swapping the x and y coefficients, negating one. The right side is directly determined by the point (-2,7):

x - 4y = -2 - 4(7) = -30

Solve for y for point slope form:

4y = x + 30

y = \frac 1 4 x + \frac{15}{2}

That's the answer.


7 0
3 years ago
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