two variables. Then graph the equation. 47. The y-value is four more than twice the x-value....

   

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two variables. Then graph the equation. 47. The y-value is four more than twice the x-value. 48. The y-value is the difference between four and twice the x-value. 49. The y-value is three decreased by the square of the x-value. 50. The y-value is two more than the square of the x-value. In Exercises 51-54, graph each equation. 51. y = 5 (Let x = -3, -2, -1, 0, 1, 2, and 3.) 52. y 1 (Let x = -3, -2, -1, 0, 1, 2, and 3.) = 53. y write each English sentence as an equation in = 1 54. y = (4 Let x = -2, -1, 1 2' = -(Let x = -2,-1,- - 1 1 1 3'3'2' 1 2' 1, and 2.) 111 - 3'3'2' 1, and 2.) two variables. Then graph the equation. 47. The y-value is four more than twice the x-value. 48. The y-value is the difference between four and twice the x-value. 49. The y-value is three decreased by the square of the x-value. 50. The y-value is two more than the square of the x-value. In Exercises 51-54, graph each equation. 51. y = 5 (Let x = -3, -2, -1, 0, 1, 2, and 3.) 52. y 1 (Let x = -3, -2, -1, 0, 1, 2, and 3.) = 53. y write each English sentence as an equation in = 1 54. y = (4 Let x = -2, -1, 1 2' = -(Let x = -2,-1,- - 1 1 1 3'3'2' 1 2' 1, and 2.) 111 - 3'3'2' 1, and 2.)