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3 years ago

Use the slope-intercept method to graph the equation y=2x-4. Is (3,2) a solution?

Mathematics

2 answers:

Andru [333]3 years ago

8 0

Yes, (3, 2) is a solution to y = 2x - 4. (:

jeka57 [31]3 years ago

3 0

The ordered pair (3,2) is a solution.
To graph the function: first plot the y-intercept at -4. Next from the y-intercept, count up 2 units and then right one unit and plot a point, continue to do this until you have several points plotted (at least 4). Next using a straight-edge, draw a line through the points.

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Write the solution to the inequality in set - builder notation: 5r + 8 < 63

Leni [432]

First, the inequality needs to be solved. The first step is to subtract 8 from both sides of the inequality, leading to 5r < 55. Dividing 5 out from both sides, this will leave r < 11. Next, to form a set notation, the inequality is written in such form: {r | r < 11}.

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3 years ago

£12000 in savings 1.5% interest per year Value after 2 years

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3 years ago

Find the equation of the line passing through the points (2, 4) and (3, 2). y = [? ]x + [ ]

PtichkaEL [24]

Answer:

first find slope m

m=(4-2)/(2-3)

m= -2

so equation line is

y-y1=m(x-x1)

y-4=-2(x-2)

y-4=-2x+4

y=-2x+4+4

y=-2x+8

?=-2

7 0

3 years ago

I need a lot of help! Is 54.03 + 4.04 greater than 54 + 4.4?

Aliun [14]

Answer:

54+4.4 is greater

Step-by-step explanation:

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2 years ago

The circumference of a redwood tree trunk is 16π ft, and it is 100 ft tall. What is the approximate volume of the redwood tree t

GarryVolchara [31]

Answer:

volume of redwood tree is 6400 π ft^3(option 4)

Step-by-step explanation:

concept =

volume of cylinder = πr^2l

where r is the radius and l is the length of cylinder

circumference of cylinder = 2πr

_____________________________________

shape of redwood tree can be taken as cylindrical

given

circumference of a redwood tree trunk is 16π ft

2πr = 16π

=> r = 16π/2π = 8

Thus, radius is 8 feet

Therefore volume of redwood tree = πr^2l = π8^2*100 = π*64*100

volume of redwood tree =6400 π ft^3

7 0

3 years ago