Verified Answer :

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

\(\sf y=mx+b\)

m is the slope
b is the y-intercept

so that means that the y-intercept of

\(\sf y=3.5x + .4\)

is \(\sf .4\)

\(\bf{\huge{\boxed{y-intercept = .4}}}\)

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