Question

7.4 need urgent help please!!!

Answer 1

Answer:

Here both line are perpendicular because as product of slope of both lines is -1

Answer 2

Answer:

lines are perpendicular

Step-by-step explanation:

If 2 lines are perpendicular then the product of their slopes = - 1

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

(1)

y = $\frac{3}{4}$ x - 1 ← is in slope- intercept form

with slope m = $\frac{3}{4}$

(2)

3y = - 4x + 6 ( divide each term by 3 )

y = - $\frac{4}{3}$ x + 2 ← in slope- intercept form

with slope m = - $\frac{4}{3}$

Then

$\frac{3}{4}$ × - $\frac{4}{3}$ = - 1

Thus the 2 lines are perpendicular to each other