Answer:
Slope of 3y-9x=9 is 3
Slope of x+3y=-6 is -1/3
Explanation:
First, convert each of the two equations into the form y = mx + c.
Next, to determine the slope of the graph, find the value of m (m represents the gradient of the graphs)
Equation 3y - 9x = 9:
Rewrite equation: 3y = 9x + 9
y = 3x + 3
m = 3
gradient/slope = 3
Equation x + 3y = -6:
Rewrite equation: 3y = - x - 6
y = -1/3x - 2
m = -1/3
gradient/slope = -1/3