Question

considerando a função dada por y=x2-7x+6, responda :
para x=4, quanto vale y?

Answer 1

y=(4)2-7(4)+6 => y=8-28+6 => y=-14

Answer 2

Y=x2-7x+6 x=4 Y=4.2-7.4+6 Y=8-28+6 Y=-20+6 Y=-14