Which pair of transformations is equivalent to the transformation described by (x, y) - (x, -y +1)? А
a reflection across the x-axis followed by a translation of 1 unit up
® a translation of 1 unit up followed by a reflection across the x-axis
© a reflection across the Y-axis followed by a translation of 1 unit up
a translation of 1 unit up followed by a reflection across the Y-axis

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.