Respuesta :

Space

Answer:

y = 1/2x - 2

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS

Algebra I

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

Step 1: Define

Slope m = 1/2

Point (2, -1)

Step 2: Find y-intercept b

  1. Substitute:                    y = 1/2x + b
  2. Substitute:                    -1 = 1/2(2) + b
  3. Multiply:                        -1 = 1 + b
  4. Isolate b:                       -2 = b
  5. Rewrite:                         b = -2

Step 3: Write linear equation

y = 1/2x - 2