Question

Graph the equation on the coordinate plane. y=−2x

Answer 1

It's a linear function (y = mx + b, where m = -2 and b = 0).

The graph of that function is a straight line.

Therefore we need only two point to the plotting the graph.

y = -2x

We choose any two x values and we calculate the y values.

for x = 0 → y = -2(0) = 0 → (0, 0)

for x = 2 → y= -2(2) = -4 → (2, -4)

Answer 2

It's a linear function (y = mx + b, where m = -2 and b = 0).

The graph of that function is a straight line.

Therefore we need only two point to the plotting the graph.

y = -2x

We choose any two x values and we calculate the y values.

for x = 0 → y = -2(0) = 0 → (0, 0)

for x = 2 → y= -2(2) = -4 → (2, -4)