To graph y = x + 4, Emaan plots one point at (0,4) and a second point 2 units right and 3 units up at (2,7). He then draws a line through (0,4) and (2,7). What error did Emaan make?

Respuesta :

Emaan plots one point at (0,4):

This is correct, he found the y-intercept:

[tex]y(0)=\frac{2}{3}(0)+4=0+4=4[/tex]

and a second point 2 units right and 3 units up at (2,7). let's check:

[tex]\begin{gathered} x=2 \\ y(2)=\frac{2}{3}(2)+4 \\ y(2)=\frac{4}{3}+4=\frac{16}{3} \end{gathered}[/tex]

This is the error, because for x = 2, y = 16/3