Question

Find the y-intercept for this equation: 3x - 5y = 30

Answer 1

Isolate Y by subtracting 3x
to get the following
\[5y = 3x-30 \]

then isolate y by dividing both sides by 5

\[y = \frac{ 3 }{ 5 }x - 6\]

this is the equation of a line which is below.

\[y = m(x)+b \]

m = slope change in y/x and b is the y intercept.

\[y = \frac{ 3 }{ 5 }(0) - 6 = -6 \]

how do we find the y intercept?

we do this by plugging x = 0 into our equation.

that's the point where the graph touches the y axes and x = 0

who when x = 0 y = -6

Answer 2

@siahniya16

Answer 3

@Photon336 Tahnks