Evaluating a Linear Function

What is the slope of all horizontal lines?

• 0

• undefined

• 1

• -1

It is a test used to determine if the graph of a relation is a function.

• Horizontal line test

• Post line test

• Vertical line test

• Hove line test

Is this graph a function or not a function? 

• Function

• Not a Function

The function h(t) represents the height in inches of a plant after t weeks. What does the notation h(4) = 5 mean?

• After 5 week the plant is 4 inches tall

• The plant grows at a rate of 5/4 inch per week

• After 4 weeks the plant is 5 inches tall

• The plant grows at a rate of 1 inch per week

The function f(m) = 2m + 3 represents the fare for a jeepney ride for m kilometers.

What does f(7) represent?

• A fare of P7 to ride the jeepney

• The fare to ride 7 kilometers

• The minimum distance to ride a jeepney

• The minimum fare of a jeepneyi

Does this data show exponential or linear behavior? What's the equation?

Graph

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Which graph represents 2x + 4y = 12?

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f(x)=4x+5
f(4)=

• 21

• -11

• -31

• 25

f(x)=2x+2

for x = 4

• 6

• -8

• 10

• 0