Name:

1.   Recall that we can write the following formula: C = (5/9)(F - 32). Here, F is the temperature in degrees Fahrenheit, and C is the temperature in degrees Celsius. Take the formula and solve for F, to obtain another formula which which gives temperature in degrees Fahrenheit.

a.  F = (5/9)(C - 32)

b.  F = (9/5)(C + 32)

c.  F = (9/5)C + 32

d.  F = (5/9)C - 32

e.  F = (5/9)(C + 32)

2.  Generally, cars lose value as they age. If the initial cost of a car is $25,000 and the car loses $1500 per year, find a formula that gives the value, V, of the car, in dollars, t years after it is purchased.

a.  V = 25000 t - 1500

b.  V = 25000 t + 1500

c.  V = 25000 - 1500 t

d.  V = 25000 + 1500 t

e.  V = 25000 - 1500

3.  Solve the equation x²+3x = 4

a.  x = 3 or x =4

b.  x = 1 or x = -4

c.  x = -3 or x = 4

d.  x = -1 or x = 4

e.  x = 1