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Phantasy [73]
3 years ago
10

6

Mathematics
1 answer:
34kurt3 years ago
8 0

Answer: A

Step-by-step explanation: So, first of all, this is a linear graph, which is represented by the equation y = mx + b.

b = y-intercept. The y-intercept is the point in which the line crosses the y axis. Assuming this graph has units that go up by 1, the y- intercept for this line is 2, which eliminates choices B and C.

This graph is going down, which means it is negative, so the format should be -mx + b, which is answer choice A. Hope this helps! :)

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A point on the line y=3x-4 has a y-coordinate of 50. What is the x-coordinate of this point?
EastWind [94]

Answer:

x=18

Step-by-step explanation:

y=3x-4

3x-4=y

3x-4=50

3x=50+4

3x=54

x=54÷3

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6:
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Answer:

$52.5

Step-by-step explanation:

Whenever there is a sales tax of a certain percentage, you need to first convert that percentage to decimal. 5%=0.05, and multiplying this by the overall price gives 0.05*50=$2.5. Adding this to the initial price of $50, you get 50+2.5=$52.5. Hope this helps!

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Which value of x satisfies the equation sin40=cosx
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Try to use your calculator and just substitute values

Step-by-step explanation:

6 0
3 years ago
Which point lies on the line described by the equation below? y+ 4 = 4(x-3) O A. (3,-4) O B. (2,9) O C. (0,0) O D. (1,-11) E. (1
dangina [55]

The point (3, -4) lie on the line y + 4 = 4(x - 3) because the point (3,-4) satisfy the line option (A) is correct.

<h3>What is a straight line?</h3>

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

\rm m =\dfrac{y_2-y_1}{x_2-x_1}

We have an equation of a line:

y + 4 = 4(x - 3)

A (3,-4)  

Plug the above points in the equation of the line.

-4 + 4 = 4(3 -3)

0 = 0    (true)

The point lies on the line

Similarly checking for others points we will find that points (2,9), (0,0) , (1,-11), (1,11), and (-2, 3) does not lie on the line y + 4 = 4(x - 3)

Thus, the point (3, -4) lie on the line y + 4 = 4(x - 3) because the point (3,-4) satisfy the line option (A) is correct.

Learn more about the straight line here:

brainly.com/question/3493733

#SPJ1

4 0
2 years ago
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