Respuesta :

davidluo123

9 because the formula is y equals to slope times x plus y intercept
This is already in slope intercept form : y = mx + b

m = 1 

Because 'x' has a one next to it. 

y = 1x + 9

'B' is the y intercept, and 9 is in that place. 

Answer: y intercept is 9

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