2.2: Linear Equations Flashcards
1
Q
Linear Function
A
A function whose graph is a line.
2
Q
Linear Equation
A
You can represent a linear function with a linear equation, like y = 3x + 2.
3
Q
Dependent Variable
A
y
4
Q
Independent Variable
A
x
5
Q
Y-Intercept
A
The point at which the line crosses the y-axis.
6
Q
X-Intercept
A
The point at which the line crosses the x-axis.
7
Q
Standard Form of a Linear Equation
A
Ax + By = C. A, B, and C are real numbers and A and B are not both zero.
8
Q
Slope
A
The ratio of the vertical change to a corresponding horizontal change of a nonvertical line.
9
Q
Point-Slope Form
A
y-y1 = m(x-x1).
10
Q
Slope-Intercept Form
A
y = mx + b.
