Know It All Friday - 8th Math - 2/18

Is this mapping a function or not a function? 

• Function
• Not a Function 

Find the rate of change

• 1
• 2
• 11
• Not a constant slope/Non-Linear

What is the initial value in this table?

• -2
• 2
• 6
• 14

Tim bought a new phone.  He paid $125 on the day of purchase, then $50 per month until it was paid off. What is the initial value in this situation?

• 50
• 125

What is the correct equation in 
Slope-Intercept Form?
(y = mx +b)

• y = 1/3x - 1
• y = 1/4x -1
• y = -1/3x +1
• y = -1/4x + 1 

What is the correct equation in
Slope-Intercept Form?
(y = mx +b)

• y = -1/3x + 3
• y = 1/3x - 3
• y = -1/3x - 3
• y = 1/3x + 3 

• No Solution

• Infinite Solutions

• No Solution

• Infinite Solutions

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

• y = 1/2
• y = 1
• y = -1/2
• y = -1

The y-intercept represents the initial value, true or false.

• True

• False