Question

Verifique si los siguientes puntos, satisfacen la ecuación relacionada. A. Y= x² + 3 ( 2 , 7 )b. Y= 3x –1 ( 2 , 6 )c. Y= 3x² + 2 ( 1 , 3 )d. Y= x³ -1 ( 2 , 7 ).

Answer 1

A, Satisface

$y = {x}^{2} + 3 : (2.7) \\ 7 = {2}^{2} + 3 \\ 7= 4 + 3 \\ 7 = 7$

B, No satisface

$y = 3x - 1 : (2.6) \\ 6 =( 3 \times 2) - 1 \\ 6 = 6 - 1 \\ 6 = 5$

C, No satisface

$y = 3 {x}^{2} + 2 : (1.3) \\ 3= 3( {1)}^{2} + 2 \\ 3 = 3 + 2 \\ 3 = 5$

D, Satisface

$y = {x}^{3} - 1 : (2.7) \\ 7 = {2}^{3} - 1 \\ 7 = 8 - 1 \\ 7 = 7$