Question

Problem

Answer 1

Answer:

The slope is 3/2 and y-intercept is 5.

Step-by-step explanation:

_______________________________________

The question states:

Find the slope and y-intercept of the line that is perpendicular to

$y=-\frac{2}{3}x+5$

and passes through the point (-6, -4)

_______________________________________

From functions, we know that if two lines, called line 1 and line 2, are perpendicular, then it is true that:

$m_{1}\times m_{2}=-1 \\ \\ \\ Where: \\ \\ m_{1}: Slope \ of \ line \ 1 \\ \\ m_{2}: Slope \ of \ line \ 2$

If the given line is called line 1, then:

$m_{1}=-\frac{2}{3}$

Then:

$m_{2}=-\frac{1}{m_{1}} \\ \\ m_{2}=-\frac{1}{-\frac{2}{3}} \\ \\ \boxed{m_{2}=\frac{3}{2}}$

On the other hand, the y-intercept can be found as:

$y=m_{2}x+b \\ \\ y=\frac{3}{2}x+b \\ \\ For \ (x,y)=(-6,-4) \\ \\ -4=\frac{3}{2}(-6)+b \\ \\ Solving \ for \ b: \\ \\ -4=-9+b \\ \\ b=9-4 \\ \\ \boxed{b=5}$

Find the slope is 3/2 and y-intercept is 5.