1).Which of the following verbal phrases is used to illustrate direct variation

A. Is directly proportional to
B. Is inversely proportional to
C. varies jointly as
D. varies directly and inversely as

2).The cost c varies directly as the number n of pencils is written as

A.
[tex]c = kn[/tex]
B.
[tex]k = cn[/tex]
C.
[tex]n = \frac{k}{c} [/tex]
D.
[tex]c = \frac{k}{n} [/tex]

3).What happens to T when h is doubled in the equation T=4h?

A. T is halved
B. T is tripled
C. T id doubled
D. T becomes zero

5.The graph of a direct variation is a____.

A. a curve
B. a line
C. a hyperbola
D. a parabola

6.If y varies directly as x and y = 12 when x = 4, find y when x = 12.

A. 3
B. 4
C. 36
D. 48

7).If y varies direclty as x, and y = –18 when x = 9, find y when x = 7.

A. –12
B. –13
C. –14
D. –15

8).Mackee's income varies directly as the number of days she works. If she earns Php8,000 in 20 days, how much will she earn if she worked 3 times as long?

A. Php 26,000
B. Php 24,000
C. Php 20,000
D. Php 16,000

9).The amount of paint p needed to paint the walls of a room varies directly as the area A of the wall. If 2 gallons of paint are needed to paint 40 sq meter wall, how many gallons of paints are needed to paint a wall with an area of 100 sq meters?

A. 3 gallons
B. 4 gallons
C. 5 gallons
D. 6 gallons

10).The amount earned by a teacher varies directly as the number of hours of tutorial service rendered. A teacher charges Php 500 per hour of tutorial service to a second year high school student. If she spends 3 hours tutoring per day, how much would she receive in 20 days?

A. Php 36,000
B. Php 34,000
C. Php 30,000
D. Php 26,000





​