MATH I EOC

Estimate the correlation coefficient.

• r=-1
• r=-0.5
• r=0.5
• r=1

Tags

CCSS.HSS.ID.C.8

Describe the relationship between the variables.

• no correlation
• strong positive correlation
• strong negative correlation
• weak positive correlation

Tags

CCSS.HSS.ID.B.5

r=-0.89

• Strong positive 
• Weak positive 
• Strong negative 
• Weak negative 

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• -0.19 weak
• -0.19 moderate
• 0.04 weak
• 0.04 strong

Lava coming from the eruption of a volcano follows a parabolic path.  The height h in feet of a piece of lava t seconds after it is ejected from the volcano is given by h(t) = -t² + 16t + 936.  After about how many seconds does the lava reach its maximum height?

• 12
• 20
• 8
• 5

If the endpoints of the diameter of a circle are (–4, 4) and (2, –2), what are the coordinates of the center of the circle?

• (-1 , 1)
• (1 , -1)
• (-3 , 3)
• (3 , -3)

Tags

CCSS.HSG.GPE.B.6

The following were ten of the exam grades for a Biology class:  76, 45, 98, 92, 88, 61, 77, 94, 92, 81.  What is the standard deviation for the data set?

• 12.9
• 14.0
• 16.6
• 18.3

The cost of renting a van for one day includes a flat rental fee plus a charge for each mile the van is driven.  A van that is driven 107 miles costs $97.15.  A van that is driven 127 miles costs $106.15.  What is the flat rental fee?

• $19.00
• $20.00
• $45.00
• $49.00

What are the zeros to the quadratic equation:
2n²=5n+7

• {-35, -1}
• {-1, 3.5}
• {3.5, 1}
• {1, -3.5}

What is the vertex of the graph of the quadratic function?
  g(x) = x² + 2x - 4

• (1, 5)
• (1, -5)
• (-1, 5)
• (-1, -5)