Choosing the Best Method

• Objective: To choose the best method of writing a linear equation between Slope-Intercept Form and Point-Slope Form.

o Warm – up: Write the equation of a line that passes through the given point with the given slope.1) m = 3; (0, -1) 2) (4, -2), (3, 1)

3) m = -⅔; (0, -5) 4) (-1, 0), (0, 2)

Choosing the Best Method

o Slope-Intercept Form:o This form uses:

o a slope (m) and o a y-intercept (0, b)

y = mx + b

o Write the equation of a line with m = -5 and y-int = (0, 3).

o Point-Slope Form:o This form uses:

o a point (x1, y1) and o a slope (m)

y – y1 = m(x – x1)

o Write the equation of a line with m = ½ that passes through (-1, 4).

o Write the equation of a line with m = -5 that passes through (0, 3).

Choosing the Best MethodWrite the equation of a line that passes through the given point with the given slope.

o m = -14; (½ , 2)

o m = 4; (7, 0)

o m = -3 ; (0, -5)

o m = ⅔; (3, -6)

Choosing the Best MethodWrite the equation of a line that passes through the given point with the given slope.

o m = 2; (0, -3)

o m = 0; (2, 8)

o (0, 2), (-2, 0)

o (5, 0), (-10, -5)

Choosing the Best MethodWrite the equation of the line that passes through the following points.o (1, 1), (3, 3)

o (0, 4), (-1, 3)

o (0, 0), (3, -6)

o (2, 3), (6, 11)

Choosing the Best Method

Choosing the Best Method

• Classwork:– Best Method Worksheet