Lesson 30- Graphing Functions

In the formula y = mx + b, what does "m" stand for?

• y-intercept

• slope

• x-axis

• y-axis

In the formula y = mx + b, what does "b" stand for?

• y-intercept

• slope

• x-axis

• y-axis

The graph of a function must passed thru ____________ line test

At how many points passes thru the graph consider as a function?

• only 1

• only 2

• at least 2

• at most 2

What is the domain and range?

• D: {–3, 0, 7, 21} 
  R: {–2, 0, 3, 10}
• D: {–2, 0, 3, 10}
  R: {–3, 0, 7, 21}
• D: {–2, 3, 10}
  R: {–3, 7, 21}
• D: {3, 10, –2, 7, 21, –3}
  R: {0}

Is this graph a function?

• Yes
• No

Nancy can type 50 words per minute. Look at the table below to write an equation that matches the data.

• m=50 + w

• w= 50m

• w= 50 + m

• m= 50 - w

Find the value of y when x = 2.

• 2
• 6
• 7
• 8

Which graph represents the table?

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Which graph represents the table?

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