The equation of line s is y=


4x–
5
3
. Line t includes the point (

3,3) and is parallel to line s. What is the equation of line t?
Write the equation in slope-intercept form. Write the numbers in the equation as simplified proper fractions, improper fractions, or integers.

1 answer

To find the equation of line \( t \) that is parallel to line \( s \) and passes through the point \((-3, 3)\), we first need to identify the slope of line \( s \).

The equation of line \( s \) is given as: \[ y = -\frac{4}{3}x - 5 \]

From this equation, we can see that the slope (\( m \)) of line \( s \) is: \[ m_s = -\frac{4}{3} \]

Since line \( t \) is parallel to line \( s \), it will have the same slope: \[ m_t = -\frac{4}{3} \]

Next, we will use the point-slope formula to find the equation of line \( t \), which includes the point \((-3, 3)\). The point-slope form of the line's equation is: \[ y - y_1 = m(x - x_1) \] where \( (x_1, y_1) \) is the point the line passes through.

Substituting in \((-3, 3)\) for \( (x_1, y_1) \) and using \( m_t = -\frac{4}{3} \): \[ y - 3 = -\frac{4}{3}(x + 3) \]

Now, we simplify the equation:

First, distribute \( -\frac{4}{3} \): \[ y - 3 = -\frac{4}{3}x - 4 \]

Next, add 3 to both sides: \[ y = -\frac{4}{3}x - 4 + 3 \] \[ y = -\frac{4}{3}x - 1 \]

The equation of line \( t \) in slope-intercept form is: \[ \boxed{y = -\frac{4}{3}x - 1} \]

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