Algebra 1 Formulas Review

• Slope-Intercept

• Slope Formula

• Point-Slope Form

• Standard Form of a Linear Equation

Answer explanation

Best used when finding the x- and y-intercepts of a linear function.

• Standard Form of a Quadratic Equation

• Vertex Form of a Quadratic Equation

• The Quadratic Formula

• The Discriminant

Answer explanation

Use this formula to find the x-intercepts (solutions) of a quadratic function when unable to factor.

• Slope Formula

• Distance Formula

• Quadratic Formula

• Slope-Intercept Form

• Mid-Point Formula

• Standard Form of an Exponential Equation

• Vertex Form of an Absolute-Value Function

• Standard Form of a Quadratic Function

Answer explanation

a represents the y-intercept (initial value), b represents the growth or decay, and the x is the amount of times it grows or decays.

• Slope-Intercept Form

• Point-Slope Form

• Slope Formula

• Standard Form of a Linear Function

Answer explanation

m is the slope (rate of change) and b represents the y-intercept (start value)

• Vertex Form of a Quadratic Function

• Vertex form of a Square Root Function

• Vertex Form of an Absolute-Value Function

• Standard Form of a Quadratic Function

Answer explanation

a is the stretch or reflection, h shifts the function left/right, and k shifts the function up/down.

• Slope-Intercept Form

• Standard Form of a Linear Function

• Point-Slope Form

• Slope Formula

Answer explanation

x1 and y1 represent a known point (x1, y1) on the line.

• The vertex

• The x-intercept

• The axis of symmetry

• The y-intercept

Answer explanation

The y-intercept always has an x-value of 0. Example (0, 2)

• Standard Form of a Linear Function

• Standard Form of a Quadratic Function

• Vertex Form of a Quadratic Function

• None of the Above

Answer explanation

(h, k) represent the vertex of the quadratic function.

Which formula helps you to find the x value of the vertex of a quadratic function?

Answer explanation

The axis of symmetry formula helps you to find the x-value (h) of the vertex of a quadratic function