Grade 8 Topics 7 8 Review Linear Functions

Grade 8 : Topics 7 & 8 Review Linear Functions Equations, Tables & Graphs Key Vocabulary: • Independent & dependent variables • Slope and Rate of Change • Y-Intercept and Initial Value • Slope-Intercept Form of Equation: y=mx + b

OBJECTIVES: Be able to… �Write a linear function rule (equation) from a graph, a table, two ordered pairs, or from a given slope and a point. �Describe the meaning of the slope and the initial value (y-intercept) in context to a graph, table or description. �Use a graph or function rule to predict values. �Determine if the rate of change is increasing or decreasing based on the slope. �Graph a function from the standard form of an equation by solving for y in terms of x, or by finding the x and y intercepts.

WARM UP Instruction: Based on the definition of a function, determine if which variable(s) could be a function of another variable(s)? X 11 15 19 23 27 Y 2 5 2 7 5 Z 0 1 2 3 4

R E V I E W Review & Clarify Activity from Friday 2/24/17 �Write equation from standard form �Page 311 – see notes � 02 24 17 Notes on Intercepts and Graphing from Standard Form. pdf �Check Solutions & Understanding �x and y intercepts �Solving for y in terms of x

P R A C T I C E �Skill Check: �Write linear equations from descriptions �Practice & Review Concepts �Review Sheet – Finish for homework if not finished in class