Review Linear Relationships

Identify the slope (AC) of ΔABC

• 2

• -2

• 1/2

• -1/2

Triangles ABC and DEF are similar. The slope of ΔABC is...

• 1 which is the same as the slope of triangle DEF.

• 4/3 which is the slope as triangle DEF.

• 3/4 which is the slope of hypotenuse of triangle DEF.

• -1 which is the same as the slope of triangle DEF.

Jason runs at a pace of 7 miles per hour and his friend runs at a pace represented by the equation y = 6x where y is distance in mile and x is time in hours. Who runs faster?

• Jason because he runs at a pace of 6 miles per hour.

• His friend because he runs at a pace of 6 miles per hour.

• Jason because he runs at a pace of 7 miles per hour.

• His friend because he runs at a pace of 7 miles per hour.

The weight of Brandi's luggage is represented by the equation y = 40x, where y represents the weight in lbs and x represents the number of bags. The weight of Javier's luggage is represented in the graph. Compare their rates.

• Brandi's luggage weighs more because it weighs 40 lbs per bag.

• Brandi's luggage weighs more because it weighs 30 lbs per bag.

• Javier's luggage weighs more because it weighs 40 lbs per bag.

• Javier's luggage weighs more because it weighs 30 lbs per bag.

Kenneth and Jorge each have a savings account. The graph and equation represents how much each boy adds to his account. Kenneth's savings is represented in the graph and Jorge's savings represented in the equation y = 13x where y is the amount of savings and x is the number of months.

Who is saving more money each month?

• Kenneth

• Jorge

Kenneth and Jorge each have a savings account. The graph and equation represents how much each boy adds to his account. Kenneth's savings is represented in the graph and Jorge's savings represented in the equation y = 13x where y is the amount of savings and x is the number of months.

How much more money is he saving each month?

• $3 more

• $5 more

• $2 more

• $4 more

Create an equation of the line that has a slope of -6 and crosses the vertical axis at (0, 3).

• $y=-6x+3$

• $y=3x-6$

A line passes through a point other than the origin, (a, b) with the slope of  $\frac{2}{3}$  .

Which of the following shows how the slope formula can be used to derive the equation of the line? 

•  $\frac{y-b}{x-a\ }=\frac{2}{3}$  

•  $\frac{y+b}{x+a}=\frac{2}{3}$  

Which panda was heavier when he was born?

• Mochi because he weighed 2 lbs.

• Kappa because he weighed 2 lbs.

• Mochi because he weighed 5 lbs.

• Kappa because he weighed 5 lbs.

Determine the slope:

(4, 6) and (7, 10)

• $\frac{4}{3}$

• Undefined

• $\frac{3}{4}$

• $-\frac{4}{3}$