運算式 6: "y" equals 1.8 "x" plus negative 80 left brace, 35.2 5 less than or equal to "x" less than or equal to 39.5 5 , right brace 有圖檔。 要進行圖形閱讀，請按 Alt + T 鍵。y=1.8x+−8035.25≤x≤39.55
6
運算式 7: "y" equals negative 1.8 "x" plus 47 left brace, 31 less than or equal to "x" less than or equal to 35.2 5 , right brace 有圖檔。 要進行圖形閱讀，請按 Alt + T 鍵。y=−1.8x+4731≤x≤35.25
7
運算式 8: "y" equals negative 8.8 left brace, 31 less than or equal to "x" less than or equal to 39.5 5 , right brace 有圖檔。 要進行圖形閱讀，請按 Alt + T 鍵。y=−8.831≤x≤39.55
8
運算式 9: "y" equals 1.8 "x" plus negative 80 left brace, 47 less than or equal to "x" less than or equal to 52.3 , right brace 有圖檔。 要進行圖形閱讀，請按 Alt + T 鍵。y=1.8x+−8047≤x≤52.3
9
運算式 10: "y" equals negative .9 "x" plus 61.2 left brace, 48.5 0 less than or equal to "x" less than or equal to 52.3 , right brace 有圖檔。 要進行圖形閱讀，請按 Alt + T 鍵。y=−.9x+61.248.50≤x≤52.3
10
運算式 11: "y" equals 20 minus 2.4 5 left brace, 21 less than or equal to "x" less than or equal to 48.5 , right brace 有圖檔。 要進行圖形閱讀，請按 Alt + T 鍵。y=20−2.4521≤x≤48.5
