3. (a) On a sheet of graph paper, using a scale of
1 cm to represent 1 unit on the x-axis and
1 cm to represent 2 units on the racis.
draw the graph of each of the following
functions for values of x from 4 to 4
(i) y=-2x + 5 (ii) y=-2x + 3
(iii) y = -2x - 4 (iv) y=-2x - 7
(b) What do you notice about the lines you
have drawn in (a)?
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Step-by-step explanation:
y आणि x " या चलांमध्ये असलेल्या एका एकसामयिक
समीकरणासाठी जर
(i) D, = 12 आणि D = 4 असेल, तर x ची किंमत काढा.
(ii) D = -3 आणि D, = 6 असेल, तर ' ची किंमत काढा.
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