Learning Day 12/16

At noon, the temperature was 92 degrees Fahrenheit. The temperature dropped 5 degrees every hour after that. Which algebraic equation represents the situation?

• T = 92 - 5h

• T = 92 + 5h

• T = 5h - 92

• T = 92h - 5

Use the equation from number 1 to answer what is the temperature after 2 hours?

Determine the constant rate of change and write an equation to represent each table of values.

• The constant rate of change is 15, and the equation is y = 15x.

• The constant rate of change is -15, and the equation is y = -15x.

• The constant rate of change is 15, and the equation is x = 15y.

• The constant rate of change is -15, and the equation is x = -15y.

Determine the constant rate of change and write an equation to represent each table of values.

• The constant rate of change is 12, and the equation is y = 12x + 108.

• The constant rate of change is -12, and the equation is y = -12x - 108.

• The constant rate of change is -12, and the equation is y = -12x + 108.

• The constant rate of change is 108, and the equation is y = 108 - 12x.

Josh is creating a garden in his backyard. He has less than 250 square yards of space to use. He plans to use 25 square yards to plant flowers. He plans to divide the remaining space into plots of equal size for vegetables. Each vegetable plot will be 30 square yards. How many plots of equal size can Josh plan for vegetables?

• Inequality: 25 + 30x < 250 Solution: x < 7.5 Josh can plan for up to 7 plots of vegetables.

• Inequality: 25 + 30x < 250 Solution: x < 8.5 Josh can plan for up to 8 plots of vegetables.

• Inequality: 25 + 30x < 250 Solution: x < 6.5 Josh can plan for up to 6 plots of vegetables.

• Inequality: 25 + 30x < 250 Solution: x < 5.5 Josh can plan for up to 5 plots of vegetables.

Solve for z: -2 + 10z = 28.

• 5
• 2
• 3
• 4

Solve for a: a/9 - 10 = 8.

• a = 162

• a = 81

• a = 18

• a = 72

Solve for w: -11 = 9 + 10w.

• w = -2

• w = 2

• w = -1

• w = 1

Define the independent and dependent variables and the constant rate of change. Write an equation that represents the data shown in the table. Complete the table.

• The independent variable is x, the dependent variable is y, the constant rate of change is -10, and the equation is y = -10x.

• The independent variable is y, the dependent variable is x, the constant rate of change is 10, and the equation is x = 10y.

• The independent variable is x, the dependent variable is y, the constant rate of change is 10, and the equation is y = 10x.

• The independent variable is y, the dependent variable is x, the constant rate of change is 0, and the equation is y = 10.

Solve the inequality and then graph the solution. 1. 6x > 42