What affect does "h" have on the parent function y = 1/x ? h < 0 moves the graph to the left, h > 0 moves the graph to the right. vertical stretch by a factor of |h| h > 0 moves the graph up, h < 0 moves the graph down. h > 0 reflects the graph across the y-axis.

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?