8B, 4A, 4C, 9E Writing Functions

Graph has a slope of 1/2 and a y- intercept of 1.  Write the equation in slope - intercept form

• y = 1x+1/2
• y = 1/2x + 1

The object was thrown or launched from what position?

• At the ground
• Above the ground
• Below the ground

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

Find the equation of the line of best fit for this table.

• y = 4.64x + 7.79
• y = 7.79x + 4.64
• y = 0.98x + 0.99
• y = 4.64x + 0.99

The correlation coefficient is a number "r" such that: 

• -1<r<1
• -1>r>1
• -1≤r≤1
• -1≥r≤1

The drama club sold tickets to a play for $5 each.  They also made $55 in soda and popcorn sales.  If the drama club made a total of $290, how many tickets were sold?

• 47
• 58
• 69
• 113

Tags

CCSS.7.EE.B.4A

The quadratic equation that can produce this table is what?

• f(x) = 4x² + 4
• f(x) = -4x² - 4
• f(x) = 4x² - 4
• f(x) = -4x² + 4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Create a function for the pictured table.

• f(x)=3(4)^x
• f(x)=4(3)^x
• f(x)=3x+4
• f(x)=4(1/3)^x

Which sentence describes the relationship shown on this scatterplot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

As x increases, y increases

• correlation coefficient
• causation
• positive correlation
• negative correlation