Exploring Systems of Equations in Grade 8

What is the cost per pound of flour in the example?

• $0.50

• $0.80

• $0.90

• $1.00

What does the point (1, 14) represent in the context of the graph?

• 14 pounds of sugar and 1 pound of flour

• 1 pound of sugar and 14 pounds of flour

• 15 pounds of flour

• 15 pounds of sugar

Which point is not on the graph of x + y = 15?

• (5, 10)

• (9, 16)

• (1, 14)

• (0, 15)

What does it mean if two lines in a coordinate plane intersect?

• They are parallel

• They have infinitely many solutions

• They have exactly one solution

• They have no solutions

What represents a solution to a system of equations?

• A point on one line

• A point on neither line

• A point on both lines

• A point outside the graph

What is the growth rate per day of Plant A?

• Three-fourths foot

• One foot

• One-half foot

• One-fourth foot

After how many days will both bamboo plants be the same height?

• 9 days

• 18 days

• 15 days

• 12 days

What is the equation for the growth of Plant B?

• y = 0.25x + 6

• y = 0.5x + 3

• y = x + 3

• y = x + 6

What type of solutions exist when lines are parallel?

• One solution

• No solution

• Two solutions

• Infinitely many solutions

What is the height of both bamboo plants when they intersect?

• 6 feet

• 9 feet

• 15 feet

• 12 feet