Question

Не выполняя построения найдите координаты точек пересечения графиков функций у=3х+7 у=-6х-2

Answer 1

Если х = 1             если х =- 2 
то у=3+7 у=10       то у=12-2 у = 10
     

Answer 2

Finding the Intersection Points of the Functions

To find the coordinates of the points of intersection of the functions y = 3x + 7 and y = -6x - 2, we can set the two equations equal to each other and solve for the value of x.

Setting the two equations equal to each other: 3x + 7 = -6x - 2

Solving for x: 3x + 6x = -2 - 7 9x = -9 x = -1

Now that we have the value of x, we can substitute it back into either of the original equations to find the value of y.

Using the equation y = 3x + 7: y = 3(-1) + 7 y = 4

Therefore, the coordinates of the point of intersection of the two functions are (-1, 4).

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