# mat126 survey of mathematics - functions

by Angel

(VA)

someone please help im lost

2. Adult tickets for a play cost $19 and child tickets cost $17. If there were 36 people at a performance and the theatre collected $646 from ticket sales, how many children attended the play? (Points : 1)

17 children

20 children

18 children

19 children

3. Find the coordinates of the x-intercept.

2x + y = -6 (Points : 1)

(-6, 0)

(0, -3)

(0, -6)

(-3, 0)

4. Find the vertex of the parabola.

y = -4x2 - 16x - 11

(Points : 1)

(5, 2)

(2, 5)

(-2, 5)

(5, -2)

5. Determine whether the system is consistent, inconsistent, or dependent.

3x - 3y = -9

9x - 9y = -27 (Points : 1)

Consistent

Dependent

Inconsistant

6. Find the domain and range of the relation, and state whether or not the relation is a function.

{(3, 9), (3, 10), (3, 11), (3, 12)} (Points : 1)

Domain = {9, 10, 11, 12}, Range = {3}

The relation is a function.

Domain = {9, 10, 11, 12}, Range = {3}

The relation is not a function.

Domain = {3}, Range = {9, 10, 11, 12}

The relation is not a function.

Domain = {3}, Range = {9, 10, 11, 12}

The relation is a function.

7. Determine whether or not the network is traversable.

(Points : 1)

No, it is not traversable.

Yes, it is traversable.

8. Determine whether or not the relation is a function.

{(1, 9), (2, 10), (3, 11), (4, 12)} (Points : 1)

No

Yes

9. Identify the quadrilateral.

(Points : 1)

Rhombus

Rectangle

Trapezoid

Parallelogram

10. The triangles in the figure below are similar. Use the proportional property of similar triangles to find the measure of x.

(Points : 1)

34.2 km

29.2 km

25.2 km

19.2 km

11. Find the slope of the line passing through the points (10, 0) and (0, 3). (Points : 1)

-10/3

10/3

3/10

-3/10

12. The amount of revenue a company makes per day by selling x items is given by the function f(x) = 14x - 0.2x2. How many items should be sold if the company wants to maximize their profit? (Points : 1)

30 items

35 items

70 items

40 items

13. Identify angles 2 and 7 as alternate interior, alternate exterior, corresponding, or vertical.

(Points : 1)

Alternate exterior

Vertical

Alternate interior

Corresponding

15. Find the measure of the supplement of 58°. (Points : 1)

32°

148°

302°

122°

16. Carla invested $23,000, part at 16% and part at 15%. If the total interest at the end of the year is $3,500, how much did she invest at 16%? (Points : 1)

$4,000

$18,000

$6,000

$5,000

17. Find the circumference of the circle. Use = 3.14.

(Points : 1)

113.04 cm

18.84 cm

56.52 cm

37.68 cm

19. Determine whether the system is consistent, inconsistent, or dependent.

2x + 2y = 2

6x + 6y = 6 (Points : 1)

Inconsistant

Consistent

Dependent

Consistent and Dependent

20. Write the equation in the slope-intercept form.

4x - 10y = 11 (Points : 1)

y = 2/5x - 11

y = -2/5x + 11/10

y = -2/5x + 11

y = 2/5x - 11/10