x = 7.5 d = 14.4 y = 10

 Take out Homework.  WS 6 Pizzazz WS 155 ◦ The Loan Arranger

Objective: To learn to -Use tables to determine if a set of values are linear or nonlinear.

Consistent change. m = -15/2 Inconsistent change.

Non-linear. Inconsistent change. Linear. Consistent change. m = 2 Non-linear. Inconsistent change.

m = 17 – 11 = 6 = 3 Slope = 3 5 – 3 2 b = 2. Read it from the chart. y = 3x + 2

m = 9 – 5 = 4 = 2 Slope = 2 3 – 1 2 Count backwards. Teacher demonstration. b = 3 y = 2x + 3

y = 2x - 1 y = ¾ x + 1 y = -2x + 4 y = ½ x - 2

m = (17-8)/(4-1) = 9/3 = 3 Then use y = mx + b to find b. y = mx + b 17 = 3(4) + b 17 = 12 + b 5 = b Then write equation… y = 3x + 5 m = (-6-(-4))/(6-2) = -2/4 = - ½ Then use y = mx + b to find b. y = mx + b -6 = -1/2(6) + b -6 = -3 + b -3 = b Then write equation… y = -½ x - 3 y = 4x - 1 y = 2/3 x + 2

4 8

Answers may vary. They all have the same slope and y-intercept; they are the same line! Answers may vary. Put all of the equations into the same form (i.e. slope-intercept form). Answers may vary. Student should explain why they prefer their chosen method. Answers may vary. You can choose the form you like best to graph. You don’t have to re-write an equation, you can simply use a different method.

HW: Math 1A U4D7 Homework