TSI Math Review

Front

Find f(–4) if f(x) = |2x – 6|/x + 2

Back

f(–4) = -7

Front

If y varies directly as y, and x = 3 when y = 24, find y when x = 10.

Back

y = 80

Front

Lee's savings account has $1373. After 15 months what will the amount of interest be at 5.7% per year?

Back

Interest = $97.83

Front

Find C if C = 5/9(F - 32) and F is 86.

Back

C = 30

Front

If 7x=2 and 3y-7x=10, then y=?

Back

y = 4

Front

What is the formula for direct variation?

Back

y = kx, where k is a constant.

Front

How do you calculate simple interest?

Back

Simple Interest = Principal × Rate × Time.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, always non-negative.

Front

What is the formula to convert Fahrenheit to Celsius?

Back

C = 5/9(F - 32).

Front

What does it mean for two variables to vary directly?

Back

If one variable increases, the other variable increases proportionally.