An aggregate demand (AD) curvewhich can be linear or curvedslopes __________. Group of answer choices up from left to right up from right to left down from right to left down from left to rightConcerning the currency exchange rate, a higher price for the dollar will __________. Group of answer choices make foreign goods cheaper and U.S. goods more expensive make foreign goods more expensive and U.S. goods cheaper reduce U.S. imports increase U.S. exports