Algebra I

In a quadratic function, what does the ' $\frac{-b}{a}$  ' represent? 

 $y\ =\ ax^2+bx+c$  

• PRODUCT OF ROOTS

• RATE OF CHANGE

• SUM OF ROOTS

• COMMON RATIO

How do I view the table in the calculator?

• Ctrl + T

• Shift + T

• Tab + T

• Doc + T

Which function defines the sequence -6, -10, -14, -18, ..., where f(6) = -26?

• f(x) = -4x - 2
• f(x) = 4x - 2
• f(x) = -x + 32
• f(x) = x – 26

Which value of x satisfies the equation?

 $\frac{7}{3}\left(x\ +\ \frac{9}{28}\right)=20$  

• x = 8.25

• x = 8.89

• x = 19.25

• x = 44.92

Find the solution to this system of equations.

 $x\ -\ 3y\ =\ 2$  

 $2x\ -\ 6y\ =\ 6$  

• Infinitely Many Solutions

• (3, 2)

• No solutions

• (2,3)

What is the solution to this system of equations?

 $3y\ =\ 25\ -\ 5x$  
 $6x\ +\ 7y\ =\ 21$  

• No Solution

• Infinitely Many Solutions

• (-3, 7)

• (7, -3)

Q. At a baseball game, Henry bought 5 hotdogs and 3 bags of chips for $14.82. Scott bought 7 hotdogs and 6 bags of chips for $22.89. Find the cost of each hotdog and bag of chips.

• Hot dogs 2.00, Chips 2.00

• Hot dogs 2.25, Chips 1.19

• Hot dogs 1.19, Chips 2.25

• Hot dogs 10, Chips 1

Which button(s) do you press to change your answer from a decimal to a fraction?

• Shift + Enter

• Ctrl + Enter

• Enter

• Ctrl + Shift

What is the value of the expression 4∛a̅ + √b̅ when a = 27 and b = 16 ?

• 336.6

• 12.6

• 16

• 12

Solve for x using a calculator: x² - 5x + 7 = 2x + 1

• x = 1

• x = 1 and x = 6

• x = 2

• x = 2 and x = 3