Two linear graphs intersect at (3,-1). One of the graphs has equation
1 answer:
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The Correct choice is :
- RT is an altitude of Triangle QRS
Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Rearrange - 4x - 5y = - 4 into this form
Add 4x to both sides
- 5y = 4x - 4 ( divide all terms by - 5 )
y = - +
← in slope- intercept form
with slope m = -
Parallel lines have equal slopes, thus
y = - x + c ← is the partial equation
To find c substitute (3, - 2) into the partial equation
- 2 = - + c ⇒ c = - 2 +
=
y = - x +
← in slope- intercept form