5 A system of equations contains the Iines x+4y=2 and x-2y=c. When solving the system algebraically it is determined that x=6. What is the value of c in the second equation? А. c=4
B. c=6
C. c=8
D. c=-4

c = 8

Step-by-step explanation:

x = 6

from first equation : 6 + 4y = 2 → 4y = 2-6=-4 → y= -1

second equation : 6 -2(-1) = c → c = 6+2=8

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17