TEKS.MATH.9-12.VII.C.1

The equation f(x) = 300(1.06)^x is being used to calculate the amount of money in a savings account.  What does the 1.06 represent?

• 6% growth
• 6% decay
• 1.06% growth
• .06% decay

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TEKS.MATH.9-12.VII.C.1

Find the y-intercept of
f(x) = 2x²-2x + 1

• 2
• -2
• 1
• -1

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TEKS.MATH.9-12.VII.C.1

The graph above shows a line of best fit for data collected on the amount earned by waiters and waitresses last week in relation to the number of tables they served.  What is the equation of the line of best fit?

• y = (5/3) x + 375
• y = (1/3) x + 475
• y = (5/3) x + 475
• y = (1/3) x + 375

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TEKS.MATH.9-12.VII.C.1

Find the general rule for: 64, -32, 16, -8, …  

• 64(1/2)^n-1
• (-32)^n-1
• 64(-1/2)^n-1
• (32)^n-1

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TEKS.MATH.9-12.VII.C.1

TEKS.MATH.9-12.VII.C.2

Write the equation for the table given

• y = 1/3x
• y = 3x
• y = 1/2x

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TEKS.MATH.9-12.VII.C.1

If f(x) = 2x + 1, find f(1).

• f(1) = 1

• f(1) = 4

• f(1) = 0

• f(1) = 3

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TEKS.MATH.9-12.VII.C.1

 $Evaluate\ the\ function\ for\ f\left(-9\right)\ if\ f\left(x\right)=\frac{3}{5}x+8$  

•  $\frac{67}{5}$  

•  $-\frac{13}{5}$  

•  $-\frac{67}{5}$  

•  $\frac{13}{5}$  

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TEKS.MATH.9-12.VII.C.1

 $a_n=a_1+\left(n-1\right)d$  , where n is the position in the sequence and d is the difference between terms.

• Sequence

• Recursive Formula

• Explicit Formula for an Arithmetic Sequence

• Explicit Formula for a Geometric Sequence

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TEKS.MATH.9-12.VII.C.1

Mr. Fisher is a really nice person (sometimes). He wants to buy his roommates ice cream. The regression equation that goes along with this situation is  $y\sim2.95x+4.95$  where x is the number of roommates who want ice cream and y is the total cost. What does the y-intercept represent in this context?

• If no roommates want ice cream, Mr. Fisher is going to spend $4.95 on himself.

• If no roommates want ice cream, Mr. Fisher is going to spend $2.95

• For every 1 roomate who wants ice cream, the cost goes up $2.95.

• For every 1 roommate who wants ice cream, the cost goes up $4.95

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TEKS.MATH.9-12.VII.C.1

The axis of symmetry for the function -x²+10x-17 is 5. What is the vertex?

• (-5, 8)

• (5,8)

• (8,5)

• (-8,5)

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TEKS.MATH.9-12.VII.C.1