exam Maths Puzzle Numerical Ability

how uo u graph y=6-x
y=x+4

and describe it as consistend and independent, consistent and dependent, or inconsistent

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exam Other Question

Katy leaves City A for City B at 8 A.M., driving at 52 mi/h. At 10 A.M., Jensen leaves City B for City A, driving at 61 mi/h along the same route. If the cities are 443 mi apart, at what time (P.M.) will they meet? On the blackboard ,the mathematics professor wrote a polynomial f(x) with integer coefficients and said"today is my son's birthday.when his age A is substituted for x,then f(a)=A,Y