Alg I Homework 2.11

What type of growth does y= 4 + 3x have?

• Linear; adding 4 each time

• Exponential; multiplying by 3 each time

• Linear; adding 3 each time

• Exponential; adding 3 each time

What kind of sequence corresponds to each model for y = 4 + 3x and y = 4(3)^x?

• Arithmetic sequence for y = 4 + 3x and geometric sequence for y = 4(3)^x

• Geometric sequence for y = 4 + 3x and arithmetic sequence for y = 4(3)^x

• Both are arithmetic sequences

• Both are geometric sequences

What type of growth does y= 4(3)^x represent?

• Linear; add 3 each time

• Exponential; multiply by a factor of 3

• Exponential; multiply by a factor of 4

• Linear; multiply by a factor of 3

Decide which form of an equation will be the most efficient to use based on the given information. Jasmine has been working to save money and wants to have an equation to model the amount of money in her bank account. She has been depositing $175 a month consistently. She doesn’t remember how much money she started with. Write the equation.

• A) y = 175x + b

• B) y = 175 + bx

• C) y = bx + 175

• D) y = 175x

Find the number of rectangles created with 5 folds.

• 16

• 64

• 18

• 32

Find the number of rectangles created with 14 folds.

• 1000

• 32768

• 16384

• 14

A heavy punching bag containing 90 kilograms of sand has a small hole in the bottom. The punching bag loses 1.2 kilograms of sand through the hole every hour. Write an equation to model the loss of sand every hour.

• S = 90 - 1.2t

• S = 90 + 1.2t

• S = 1.2t - 90

• S = 90t - 1.2

What do you know from the equation y = 5(x - 2) - 6 that helps you to graph the function?

• The slope of the line is 5 and the y-intercept is -6.

• The slope is 5 and the point (2, -6) is on the line.

• The slope is -6.

• The equation represents a horizontal line.

Solve the equation x - 10 = 2.

• x = 12

• x = 8

• x = 10

• x = 2

Solve the equation 6 + x = 10.

• x = 4

• x = 5

• x = 6

• x = 7