Respuesta :

geerky42
Y-intercept is value of y when x=0.
So just plug in x=0 and solve for y;
 
y = 3.5x - 0.4
y = 3.5(0) - 0.4
y = 0-0.4
y = -0.4
   
So y-intercept is -0.4
TSO
[tex]\sf y=mx+b[/tex]

m is the slope
b is the y-intercept

so that means that the y-intercept of

[tex]\sf y=3.5x + .4[/tex]

is [tex]\sf .4[/tex]

[tex]\bf{\huge{\boxed{y-intercept = .4}}}[/tex]

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