TEKS.MATH.9-12.II.A

Write equation of the line containing (0,0) and (1,3)

• y = 1/3x + 2  2/3
• y = 3x + 2 2/3
• y = 1/3x + 0
• y = 3x + 0

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TEKS.MATH.9-12.II.A

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

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TEKS.MATH.9-12.II.A

A mathematical sentence formed by placing the symbol = between two expressions

• equation
• inequality
• expression
• none of these

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TEKS.MATH.9-12.II.A

(5x+2)(x²-3x+6)

• 5x³ - 17x² +24x +12
• 5x³ + 17x² - 24x +12
• 5x³ - 13x² + 24x +12
• 5x³ +13x² - 24x - 12

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TEKS.MATH.9-12.II.A

(3x³ + 5x - 1) ÷ (x + 1)

• 3x³ - 3x² + 8x - 9
• 3x² - 3x + 8 - 9/x+1
• 3x² + 3x + 8 + 7/x+1
• 3x³ + 3x² + 8x + 7

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TEKS.MATH.9-12.II.A

A restaurant sells pizza for the prices in the data table.  Calculate the linear regression equation of the data.

• y = 1.5x + 12
• y = 12x + 1.5
• y = 0.67x - 8
• y = -8x + 0.67

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TEKS.MATH.9-12.II.A

(a + b)² = a² + 2ab + b²

• True

• False; a² + b2

• False; a² - 2ab + b²

• False; a² - b²

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TEKS.MATH.9-12.II.A

Rewrite the exponential as a log.

2^3x+1 = 12

• ln(2)= 3x+1

• log₂(12)= 3x+1

• ln(6)=3x+1

• log₁₂(2)= 3x+1

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TEKS.MATH.9-12.II.A

Change the following equation to standard form

x² + y² - 4x + 12y - 8 = 0

• (x + 2)² + (y - 6)² = 48

• (x - 2)² + (y + 6)² = 48

• (x - 6)² + (y - 2)² = 48

• (x + 2)² + (y - 6)² = 48

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TEKS.MATH.9-12.II.A

 $f\left(x\right)=\left(-10x^2-7x^{\frac{2}{5}}+9\right)\left(2x^3+4\right)$  

•  $10x^4+\frac{238x^{\frac{2}{5}}}{5}-54x^2+80x+\frac{56}{5x^{\frac{3}{5}}}$  

•  $100x^4+126x^2+18-\frac{60}{x^3}$  

•  $10x^4-\frac{238x^{\frac{2}{5}}}{5}+54x^2-80x-\frac{56}{5x^{\frac{3}{5}}}$  

•  $60x^4-\frac{148x^{\frac{2}{5}}}{5}+28x^2-14x-\frac{36}{7x^{\frac{3}{5}}}$  

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TEKS.MATH.9-12.II.A