Draw the graph of the equation y=3x-4. find graphically
(i) the value of y when x=-1
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Answer:
(i) -7 (ii) 3
Step-by-step explanation:
we have
y=3x-4
the value of y when x=-1 , y= -7 , y=3x-4 => y=3×(-1)-4 => y=-7
the value of x when y=5 , x=3 , y=3x-4 => 5=3x-4 => 3x=5+4 =>3x=9 =>x=9÷3 =>x=3
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