i need help on the last question. thanks! post show work

A multiple regression includes two regressors Y = 80 B X , , + pz X2 + 4 Use the tool palette to the right to answer the following questions What is the expected change in Yr X, Increases by 7 units and X, is unchanged? The expected change in Yit X, increases by 7 units and X, Is unchanged is 7 (Property format your expression using the tools in the palette. Hover over shortcuts E9. a subscript can be created with the character) What is the expected change in Ye X, decreases by 4 units and X, is unchanged? The expected change in YIL X, decreases by 4 units and X, is unchanged is -48, (Property format your expression using the tools in the palette) What is the expected change in YtX, Increases by Sunits and Xy decreases by 3 units? The expected change in Ye X, increases by units and X, decreases by 3 unitsis (Property format your expression using the tools in the palette + . vo Vi . Enter your answer in the answer box and then click Check Answer More