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NISA [10]
2 years ago
15

Which of the following graphs represent the equation y-4=3(x-1)

Mathematics
2 answers:
Keith_Richards [23]2 years ago
7 0
First, you should put the equation into the format y = mx + b, like this:

y-4 = 3x-3
y = 3x-3+4 
y = 3x+1

Now we know that the equation intercepts the Y-axis on +1.

This is only true for D; so things point into the direction of D being the right one. To make sure we can try the equation for another point.

Like this:
y = 3*-1 +1
y = -3 + 1 = -2

Which also matches D.

Hence, the correct graph is D. :)
creativ13 [48]2 years ago
6 0
Y-4=3x-3

y=3x+1

Now we don't have the picture but all points must satisfy the y found above.

Of particular note are the x and y intercepts which will be easy to see.

The y intercept is when x=0, so the point (0,1) should be easy to see.  When the line crosses the y axis, y will equal 1.

The x intercept is when y=0, so the point (-1/3, 0) will be where the line crosses the x axis.

These two points will show you which is the correct graph.
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Six times a number x and was added to 90 and the result is -42. What is the number​
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According to the question,

6x + 90 = -42

<h3>To Find:</h3>

The value of x.

<h3>Solution:</h3>

6x = -42 + 90

or, x = 48/6

or, x = 8

<h2>Answer:</h2>

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4 0
3 years ago
Mary throws her Grandma’s favorite crystal dish out the second floor window, which is 6 meters from the ground. She is really up
wlad13 [49]

we know that

acceleration due to gravity is 9.8m/s^2

so, we get

a(t)=9.8

and acceleration will always be constant

we know that

integral of acceleration is velocity

so, we can integrate both sides

\int \:a\left(t\right)dt=\int \:9.8dt

v(t)=9.8t+C

we are given

v(0)=35m/s

we can use it and find C

v(0)=9.8*0+C

35=9.8*0+C

C=35

now, we can plug it back

v(t)=9.8t+35

we know that

integral of velocity is height

we can integrate it again

\int \:v\left(t\right)dt=\int \:\left(9.8t+35\right)dt

s(t)=\int \:\left(9.8t+35\right)dt

s(t)=4.9t^2+35t+C

now, we have

s(0)=6

we can use it and find C

s(0)=4.9(0)^2+35(0)+C

6=4.9(0)^2+35(0)+C

now, we can plug back C

C=6

and we get

s(t)=4.9t^2+35t+6.............Answer

4 0
3 years ago
Read 2 more answers
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