Question

Seja a função y=x²-7x+10.Qual e o valor de y para x=1/2?
   SOCOROOO AJUDEM AI

Answer 1

$y=x^2-7x+10$

$x=\dfrac{1}{2}$

$y=\left(\dfrac{1}{2}\right)^2-7\cdot\dfrac{1}{2}+10$

$y=\dfrac{1}{4}-\dfrac{7}{2}+10$

$y=\dfrac{1-14+40}{4}$

$y=\dfrac{27}{4}$