Jawapan:
#color (violet) ("x-intercept" = a = 25/3, "y-intercept" = -25 #
Penjelasan:
#y = -3 (9-x) - 7 + 9 #
# "Cekatan bentuk persamaan linear adalah" x / a + y / b = 1 #
#y = -27 + 3x - 7 + 9 #
#y = 3x - 25 #
# 3x / 25 - y / 25 = 1 #
# x / (25/3) + y / -25 = 1 #
graf {3x - 25 -10, 10, -5, 5}
#color (violet) ("x-intercept" = a = 25/3, "y-intercept" = -25 #
Jawapan:
#color (coklat) ("x-intercept" = 25/3 #
Penjelasan:
#y = -3 (9-x) - 7 + 9 #
#y = -27 + 3x - 7 + 9 #
#y = 3x - 25 #
Dengan menyamakan y -> 0, kita boleh mendapatkan x-intersepsi
# 0 = 3x - 25 #
# 3x = 25 "atau" x = 25/3 #
#color (coklat) ("x-intercept" = 25/3 #
graf {3x-25 -10, 10, -5, 5}
