Graphs

What is the shape of the graph of the equation y = 2x + 3?

If a graph passes through points (1, 2) and (3, 6), what is the slope of the line?

Which of the following equations represents a parabola?

What is the y-intercept of the graph y = -4x + 7?

The graph of y = 1/x is called a:

If the graph of y = mx + c passes through the origin, what is the value of c?

Which of the following points lies on the graph of y = x^2 - 4?

The distance between points (2, 3) and (5, 7) on a graph is:

If the graph of y = ax^2 + bx + c touches the x-axis at exactly one point, what can be said about the discriminant (b^2 - 4ac)?

A line passes through points A(1, 2) and B(4, k). If the slope of the line is 3, what is the value of k?