Unit 4 Lesson 3 Cumulative Practice Problems
1. Function f gives the temperature, in degrees Celsius, 1 hours after midnight.
Choose the equation that represents the statement: "At 1:30 p. m., the temperature
was 20 degrees Celsius."
A f(1:30) = 20
B. f(1.5) = 20
C. $(13:30) = 20
D. f(13.5) = 20

Identify which functions are linear or non-linear. a. f(x) = x2 + 1 b. f(x) = 2x + 5 c. f(x) = x 2 + 3 d. f(x) = 3 x + 7 e. f(x) = 4x + 10 2 - 5

Write the rational number in lowest terms 99/-15

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.