Functions and Linear Relationship Vocabulary Word Quiz

The point on a graph where a function crosses the x-axis (Where Y=0 ,); point (x,0)

• x-intercept

• y-intercept

rise/run; rate of change; Change in y/Change in x

• slope

• x-intercept

• y-intercept

• undefined

What is a function?

• Any set of ordered pairs

• When each input has two outputs

• When each input has exactly one output

• When the input matches to two different outputs

What rate describes how one quantity changes in relation to another quantity?

• Rate of Change

• Y-intercept

• X-value

• y = mx + b 

A linear function is a function whose graph is a...

• Curved line

• An upright U shape

• Straight line 

• None of the above 

a line that slants down from left to right

• zero or no slope

• negative slope

• postivite slope

• undefined slope

Lee charges $3 for a basket and $2.50 for each pound of fruit picked at the orchard. Write an equation in y = mx + b form for the total cost of x pounds of fruit from the orchard.

• y = 3x + 2.5

• y = 2.50x + 3

• y = 2.50x 

• y = 3x + 2.50

_{What is the y-intercept of the line?}

• y = 1/2

• y = 1

• y = -1/2

• y = -1

What is the y-intercept?

• 7

• 0

• 1

• 2

Is the graph linear, exponential or neither?

• Linear

• Exponential

• Neither