Ответ:
а) y = 0; x - ?
0 = 2x - 6
6 = 2x
x = 3
(3; 0)
б) y - ?; x = 0
y = 12 · 0 + 7
y = 7
(0; 7)
с) y = -2 · 0 + 7
0 = -2x + 7
-7 = -2x
x = 3,5
(3,5; 7)
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Ответ:
а) y = 0; x - ?
0 = 2x - 6
6 = 2x
x = 3
(3; 0)
б) y - ?; x = 0
y = 12 · 0 + 7
y = 7
(0; 7)
с) y = -2 · 0 + 7
y = 7
0 = -2x + 7
-7 = -2x
x = 3,5
(3,5; 7)