CCSS.Math.Content.HSA.REI.C.6

Rachel is standing atop a 13 ft ladder. The ladder is leaning against a vertical wall. The ladder starts sliding away from the wall at a rate of 3 ft/sec. How fast is the ladder sliding down the wall when the tip of the ladder is 5 ft high?

• 3 ft/sec
• -7.2 ft/sec
• 7.2 ft/sec
• 12

Tags

CCSS.Math.Content.HSA.REI.C.6

Solve the system of equations:
x + y + z = 4
x = -2y
z = -3y

• (2, -1, 3)
• (2, 3, 1)
• None of these
• (4, 1, -1)

Tags

CCSS.Math.Content.HSA.REI.C.6

Solve by elimination:
-9x-4y=-20

5x+4y=4

• (-4,4)
• (4,4)
• (4,-4)
• (-4,-4)

Tags

CCSS.Math.Content.HSA.REI.C.6

Give the solution to the system

• (3,1)
• (1,3)
• (-1,3)
• No solution

Tags

CCSS.Math.Content.HSA.REI.C.6

Where do these two lines meet?

• (2, -9)
• (-9, 2)
• No solultion
• (2, 9)

Tags

CCSS.Math.Content.HSA.REI.C.6

What is the solution to the system of equations provided?

• The system has no solution
• There are many solutions
• (2,2)
• (2,-2)

Tags

CCSS.Math.Content.HSA.REI.C.6

The pair of equations 'y = 0' and 'y = -7' has ____

• one solution 
• two solutions 
• infinitely many solutions 
• no solutions

Tags

CCSS.Math.Content.HSA.REI.C.6

Solve for x and y.
y = 2/3x - 2
y = -x + 3

• (0,3)
• (0,-3)
• (3,0)
• (-3,0)

Tags

CCSS.Math.Content.HSA.REI.C.6

Solve for x and y
y = 2x + 1
y = 4x - 1

• (1,3)
• (-1,-3)
• (-1,3)
• (3,1)

Tags

CCSS.Math.Content.HSA.REI.C.6

Solve the system of linear equations
-2x - 10y = 22
2x + 5y = -12

• (-2, -1)
• (-4, -2)
• (4, -2)
• (-1, -2)

Tags

CCSS.Math.Content.HSA.REI.C.6