exam Maths Puzzle Numerical Ability

graph the line that passes through (5,4), parallel to the graph of 4.4x+6.5y=5

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exam Other Question

calculate the value of the discriminant of x^ + 2x +1 = 0 by examining the sign of the discriminant in part a, how many x- intercepts would the graph of y + x^ + 2x +1 have ? Why? Multiply. 7w(2w - 3)(2w + 3)

Please help with this I have tried to work this problem and I am confused now because I cannot figure this out. Thanks.