Answer:
a) Graph attached below
b) See Below
Step-by-step explanation:
a)
Graph is attached below.
It is a negative sloping line with y-intercept of 0.
b)
The equation of a line is given as
y = mx + c
Where m is the slope (rise/run) and c is the y-intercept (the place where it cuts the y-axis)
Looking at y = -2x, we see that slope is -2 and y-intercept is 0.
The meaning of slope is rise/run, or the change in y/change in x.
So, a slope of -2 can be written as:
[tex]\frac{-2}{1}[/tex]
It means "for every change in 1 units of x, there is a change (negative) of 2 units in y".
Or we can say for every per unit change in x (positive), the change in y is -2 (negative).