Question

Проходит ли график функции y=-7x-3 a) C(-8;-53); б) D(4;-25)? ​

Answer 1

Ответ:

а)-53=-7•(-8)-3

-53=53

График у=-7x-3 не проходит через С(-8;-53)

b)-25=-7•4-3

-25=-31

График у=-7x-3 не проходит через D(4;-25)

Answer 2

Ответ на фото❤️

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Удачи)

Answer 3

Graphing the Function y = -7x - 3

To determine if the points C(-8, -53) and D(4, -25) lie on the graph of the function y = -7x - 3, we can substitute the x-coordinate of each point into the equation and check if the resulting y-coordinate matches.

Let's start with point C(-8, -53): - Substituting x = -8 into the equation y = -7x - 3, we get: y = -7(-8) - 3 y = 56 - 3 y = 53

The y-coordinate of point C is 53, which does not match the given y-coordinate of -53. Therefore, point C does not lie on the graph of the function y = -7x - 3.

Now let's check point D(4, -25): - Substituting x = 4 into the equation y = -7x - 3, we get: y = -7(4) - 3 y = -28 - 3 y = -31

The y-coordinate of point D is -31, which matches the given y-coordinate of -25. Therefore, point D does not lie on the graph of the function y = -7x - 3.

In conclusion, neither point C(-8, -53) nor point D(4, -25) lies on the graph of the function y = -7x - 3.