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Mathematics 11 Online
OpenStudy (anonymous):

What is the y-intercept of the line described by the equation below? y = 4x - 9 A. (0, 4) B. (0, -4) C. (0, -9) D. (0, 9)

OpenStudy (welshfella):

the y intercept is the point where x = 0

OpenStudy (welshfella):

- the point on the line where x = 0.

OpenStudy (welshfella):

to find the value of y for the point plug x = 0 into the equation and work it out

OpenStudy (welshfella):

y = 4(0) - 9 = ?

OpenStudy (anonymous):

i got it it was B

OpenStudy (welshfella):

NO

OpenStudy (welshfella):

what do you get for y ? ( its not -4)

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