Answer: y=2x+1 is parallel & y=-2x+5 is perpendicular
Answer:
y = - 2x + 12
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 )
Here m = - 2, thus
y = - 2x + c ← is the partial equation
To find c substitute (5, 2) into the partial equation
2 = - 10 + c ⇒ c = 2 + 10 = 12
y = - 2x + 12 ← equation of line
solve for y by subtracting 3x from each side
-4y = -3x+8
divide by -4
y = 3/4 x -2
Step-by-step explanation:
a triangle,=180
so 68+35-180=77
then 77+68=145
