y = ax^2 + bx + c

y = ax + b

y = mx + b

y = a/x + b

The line is vertical.

The line decreases as x increases.

The line is horizontal.

The line increases as x increases.

By ensuring the function values are all zero.

By ensuring the function values match the table values.

By checking if the graph is a circle.

By checking if the graph is a parabola.

2

5

-5

0

By dividing the change in y by the change in x between two points.

By finding the x-intercept.

By measuring the angle of the line.

By finding the y-intercept.

y = 1

x = 1

y = 3

x = 3

Because it has no y-intercept.

Because the slope is zero.

Because the slope is undefined.

Because it is a quadratic equation.

All x-coordinates are the same.

All y-coordinates are the same.

All coordinates are zero.

All coordinates are different.

y = 1

y = 3

x = 3

x = 1

Zero

Undefined

Positive

Negative