STAAR Mock - DAY 1 Review

Oscar buys his lunch in the school cafeteria. The cost of 15 school lunches is $33.75.

Which graph has a slope that best represents the average cost of the lunches in dollars per lunch?

• 
• 
• 
• 

The two lines graphed on the coordinate grid each represent an equation.

Which ordered pair represents a solution to both equations?

• (-4, 0)

• (-3, 3)

• (3, -3)

• (0, 4)

Triangle PSV is shown on the coordinate grid. The coordinates of each vertex of the triangle are integers.

What is the slope of PV?

• 3

• 4

• -1

• -4

A coach is ordering shirts for a team.

• The coach pays a one-time fee of $24.

• The coach also pays $8 for each shirt ordered.

Which function can be used to find c, the total amount the coach pays in dollars when k shirts are ordered?

• c = 8k +32

• c = 8k +24

• c = 32k + 8

• c = 24k + 8

Triangle HJK and triangle PMK are similar right triangles. The coordinates of all the vertices are integers.

Which statement is true about the slope of HK and the slope of PK?

• The slope of HK is less than the slope of PK, because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is less for HK than it is for PK.

• The slope of HK is equal to the slope of PK, because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is the same for HK as it is for PK.

• The slope of HK is greater than the slope of PK, because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is greater for HK than it is for PK.

• The relationship between the slope of HK and the slope of PK cannot be determined, because the triangles are congruent.

A bottle contains 30 fluid ounces of orange juice and 18 fluid ounces of pineapple juice. Which graph has a slope that best represents the ratio of orange juice to pineapple juice in this bottle?

• 
• 
• 
• 

The graph shows the relationship between the number of gallons of fuel remaining in the tank of a semitruck and the number of miles traveled by the semitruck.

Which function can be used to find y, the number of gallons of fuel remaining in the tank of the semitruck after it has traveled x miles?

• $y\ =\ 240x\ -30$

• 
  

  $y\ =\ -\frac{1}{6}x\ +\ 240$
  

• $y\ =\ 240x\ -10$

• $y\ =\ -\frac{1}{10}x\ +240$

Which graph appears to show a proportional relationship between x and y?

• 
• 
• 
• 

The table shows the linear relationship between the number of hours Francis worked, x, and the amount of money Francis earned, y.

Based on the table, how much did Francis earn per hour?

• $17.50 per hour

• $14.00 per hour

• $35.00 per hour

• $24.50 per hour

On a map scale, 2 inches represents 60 miles. Which graph best shows the relationship between x, the number of inches on the map, and y, the actual distance in miles?

• 
• 
• 
•