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3 years ago

What is the slope of the line that passes through (3,-7) and (-1,1)

Mathematics

1 answer:

Anna [14]3 years ago

5 0

Answer:

-2

Step-by-step explanation:

slope formula is (y2-y1)/(x2-x1)

1 - -7 / -1 - 3

8 / -4

-2

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What is the equation of the line that passes through (1, 2) and (8,9) in slope-intercept form?

Neporo4naja [7]

Answer:

The equation of line that passes through (1, 2) and (8,9) in slope-intercept form is: $y = x+1$

Step-by-step explanation:

The slope-intercept form of line is given by the formula:

$y = mx+b$

Here m is the slope and b is the y intercept

Given

$(x_1,y_1) = (1,2)\\(x_2,y_2) = (8,9)$

First of all, the slope has to be found

$m = \frac{y_2-y_1}{x_2-x_1}\\m = \frac{9-2}{8-1}\\m = 1$

Putting m=1 in the equation

$y = x+b$

Putting the point (1,2) in the equation to find the value of b

$2 = 1+b\\b = 2-1\\b = 1$

The equation is:

$y = x+1$

Hence,

The equation of line that passes through (1, 2) and (8,9) in slope-intercept form is: $y = x+1$

7 0

3 years ago

Como divido 2 5/8 / 5 ayuda

geniusboy [140]

Answer:

21/40

Step-by-step explanation:

2 5/8 / 5 =

= 2 5/8 / 5/1

= 21/8 × 1/5

= 21/40

8 0

2 years ago

You have researched your dream around-the-world vacation and determined that the total cost of the vacation will be $39,000. You

wel

Answer:

41.8 years

Step-by-step explanation:

From

$A = P(1+r/n)^{nt}$

A= 39000

r = 10.5%

P = $ 485

n=12

t = the unknown

t= [ ln(A) - ln(P) ] / n[ln(1 + r/n)]

t= ln 39000 - ln 485/ 12[ln(1+0.105/12)]

t= 10.57 - 6.18/0.105

t= 41.8 years

5 0

3 years ago

300 divided by 3 x 33

Airida [17]

300/3=100

100*33=3300

3 0

3 years ago

Giving brainlist to whoever answers

just olya [345]

Answer:

False

Step-by-step explanation:

$V=bhw\\V=7.5*13*2\\V=195$

6 0

3 years ago