Identify the slope and the y-intercept of the equation 4x−3y=12

.
Responses

The slope is 43

, and the y-intercept is (0, −4)
.
The slope is 4 thirds, and the y-intercept is (0, −4)
. - not selected, this is the correct answer
The slope is 4, and the y-intercept is (0, 12)
.
The slope is 4, and the y-intercept is (0, 12)
. - no response given
The slope is 43
, and the y-intercept is (0, 4)
.
The slope is 4 thirds, and the y-intercept is (0, 4)
. - incorrect
The slope is −43
, and the y-intercept is (0, 4).

1 answer

To determine the slope and the y-intercept of the equation \(4x - 3y = 12\), we can rearrange it into slope-intercept form, which is \(y = mx + b\), where \(m\) is the slope and \(b\) is the y-intercept.

  1. Start with the equation: \[ 4x - 3y = 12 \]

  2. Solve for \(y\): \[ -3y = -4x + 12 \] \[ y = \frac{4}{3}x - 4 \]

From this form, we can see that:

  • The slope \(m\) is \(\frac{4}{3}\).
  • The y-intercept \(b\) is \(-4\), which means the y-intercept point is \((0, -4)\).

Therefore, the correct response is:

  • The slope is \(\frac{4}{3}\), and the y-intercept is \((0, -4)\).
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