U2L3B Ready, Set, Go

Match the following

• Exponential Function

• Explicit Formula for an Arithmetic Sequence

• Linear Function

• Explicit Formula for a Geometric Sequence

Match the following

• continuous linear graph

• 
• continuous exponential graph

• 
• discrete exponential graph

• 
• discrete linear graph

• 

Answer explanation

discrete graphs are points (dots) not connected

continuous graphs are points that are connected by a smooth curve or line

linear graphs are a straight line

exponential graphs are a curve

What is the y-intercept of the function shown in the graph?

Mathematical Equivalence

ON

Answer explanation

Graph the linear function

f(x)=2x+5

Answer explanation

choose any two points from the table to plot on the graph to make the line

Match the following for f(x)=2x-7

• -11

• f(7)

• 7

• f(0)

• 3

• f(5)

• -7

• f(-2)

Answer explanation

f(x)=2x-7

f(0)=2(0)-7=-7

substitute 0 for x then use PEMDAS

f(5)=2(5)-7=3

substitute 5 for x then use PEMDAS

• 1

• f(2)

• 3

• f(1)

• 9

• f(-2)

• f(-1)

• f(0)

Match the following

• increasing exponential graph

• 
• increasing linear graph

• 
• decreasing linear graph

• 
• decreasing exponential graph

• 

Answer explanation

read the graph from left to right

if the graph goes UP, it is INCREASING

if hte graph goes DOWN, it is DECREASING

Match the following - use your vocabulary notes from Unit 2 Lessons 1-4.

• Where the graph crosses y-axis

• Exponential Function

• the multiplier, b, in

  exponential func.

• Common ratio

• represents a 

  straight line

  f(x)=ax+b

• y-intercept

• Slope

• the measure of a line's steepness

• Linear Function