Answer:
Simplified: its 63 then to 3² · 7
Step-by-step explanation:
Answer:
-0.2
Step-by-step explanation:
Gradient/slope = 
Answer:
c = 7
Step-by-step explanation:
Given
2x + y = c
Since (3, 1) is on the line then it makes the equation true,
Substitute x = 3, y = 1 into the equation
2(3) + 1 = c
6 + 1 = c
7 = c