Relations, Functions, Coordinate Graph

Select ALL the equations that can be represented by a straight line when graphed on the coordinate plane.

• x = 15y - 8

• 2x² + y = -3

• y = -3(x + 7)

• x = -3y³ + y

• y = x(3x + 2) -1

A linear model shows that the relationship between the number of grocery items purchased and the total cost of the grocery bill has a correlation coefficient of 0.89.

• There is a strong relationship between the number of items purchased and the total cost of the grocery bill.

• If a grocery bill has a higher cost, then more items must have been purchased.

• Purchasing more items causes a higher cost of the grocery bill.

• There is no relationship between the number of items purchased and the total cost of the grocery bill.

The __________ is the name for the four regions of the coordinate plane.

• quadrilateral

• quartile

• quarter

• quadrant

The rate of change is also called the ___________

• slope

• ratio

• intercept

• point

The form y - y₁ = m(x - x₁) is called __________ form.

• point-slope

• slope-intercept

• function

• standard

Formed by the intersection of two number lines, the horizontal axis and the vertical axis.

• Coordinate Plane

• x-axis

• y-axis

• quadrants

The horizontal axis on a coordinate plane.

• x-axis

• y-axis

• quadrants

• origin

The vertical axis on a coordinate plane.

• y-axis

• quadrants

• origin

• ordered pair

The point at which the x- and y-axis intersect on the coordinate plane. (0, 0)

• origin

• ordered pair

• x-coordinate

• y-coordinate

A set of numbers, or coordinates, written in the form (x, y).

• ordered pair

• x-coordinate

• y-coordinate

• discrete graph