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3 years ago

Slope-intercept equation from graph (please help)

Mathematics

2 answers:

spayn [35]3 years ago

7 0

Answer: Y=4 x+-2

Step-by-step explanation:

Wewaii [24]3 years ago

6 0

9514 1404 393

Answer:

y = 2x +4

Step-by-step explanation:

The slope-intercept form of the equation of a line is ...

y = mx + b

where m represents the slope (rise/run), and b represents the y-intercept.

Here, the line increases by 2 units (rise=2) for each increase of 1 unit in the x-direction (run=1). Then the slope is ...

m = rise/run = 2/1 = 2

The graph crosses the y-axis at y=4, so the y-intercept value is ...

b = 4

Putting these values into the above slope-intercept form, we have ...

y = 2x + 4

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NNADVOKAT [17]

Answer:

Step-by-step explanation:

Using the formula for calculating simple interest as shown;

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Principal = Cost of tablet = $1500

Interest after one year = $1500-$1000 = $500

Time = 1year

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3 years ago

The amount in kilograms, a, of a radioactive element that remains after t hours can be modeled by the equation a= 0.65(0.92)to t

elena-14-01-66 [18.8K]

Answer:

The rate of decrease is 8%

Step-by-step explanation:

we know that

The general equation for the radioactive decay can be written as:

$a=a_0(1-r)^t$

where

a is the amount in kilograms after time t.

a_0 is the original amount of the substance or y-intercept of the function

r is the decay rate, written in decimals.

t is the time

In this problem we have

$a=0.65(0.92)^t$

$a_0=0.65\\(1-r)=0.92$

solve for r

$r=1-0.92=0.08$

Convert to percentage

$0.08(100)=8\%$

6 0

4 years ago

A ship at sea, the Gladstone, spots two other ships, the Norman and the Voyager, and measures the angle between them to be 48°.

ratelena [41]

Answer:

=3501 yards.

Step-by-step explanation:

The three ships form a triangle. From the Voyager the angle between the Norman and the Gladstone=180-(55+48)=77°

Let the position of the Voyager be V that of Norman be N and that of the Gladstone be G

Then, the distance between Norman and voyager is g

g/sin G=v/ Sin V

4590/Sin 77=g/Sin 48

g=(4590 Sin 48)/Sin 77

=3500.8 yards

The distance between the Norman and the voyager= 3501 yards.

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OverLord2011 [107]

Answer:

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Step-by-step explanation:

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mariarad [96]

The absolute value parent function.

5 0

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