exam Maths Puzzle Numerical Ability

Can you help me graph the equation y=x^2-4x and y=-x+1

Thanks so much!
ac

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exam Other Question

Graph the inequality

20). x + y ≤ 5 Can you please help me find the domain and range of this piecewise defined function
.
f(x) = { x + 6, {{{ x <= -4 }}} }
.........{ x + 10, {{{ -4 < x < 8 }}} }
.........{ 30, {