2.7 Equations in y=mx form

Which is the better deal?
Sargento Cheese Slices
$2.48 for 10 slices
OR
Velveeta Cheese Slices
$3.18 for 12 slices

• Sargento
• Velvetta

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound
• $3.60 per pound
• $1.20 per pound
• $1.10 per pound

• y = 60x

• y = 40x

• y = 80x

• y = 20x

Write the equation for the table given

• y = 1/3x

• y = 3x

• y = 1/2x

• y= 2x

• y = (1/45)x

• y = 45x

• y=40x

• y=90x

• y= (1/5)x
• y = 10x
• y = 5x
• y = 3x

In the equation y = 14x, what is the slope?

Is this table proportional?

• Yes
• No

What is the constant of proportionality, or the slope, (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

Which of these lines has a negative slope?

• $y=3x$

• $y=\frac{1}{2}x$

• $y=3$

• $y=-2x$