Midterm Exam II-Part I-MATH.10.HFS1

Midterm Exam II-Part I

Use the graph to answer Q1 through Q7:
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Find the x-intercept.

Select one:

A.

-5

B.

-4

C.

3

D.

No intercept

Question 2

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Find the y-intercept.

Select one:

A.

-5

B.

-4

C.

3

D.

No intercept

Question 3

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Find the slope of the straight line.

Select one:

A.

-4/3

B.

4/3

C.

-3/4

D.

3/4

Feedback

The correct answer is: 4/3

Question 4

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Express the line in slope-intercept form.

Select one:

A.

y = (-4/3)x + 4

B.

y = (-4/3)x – 4

C.

y = (4/3)x – 4

D.

y = (-3/4)x + 4

Feedback

The correct answer is: y = (4/3)x – 4

Question 5

Incorrect

0.00 points out of 2.00

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Question text

Express the line in point-slope form.

Select one:

A.

y – 3 = (4/3)(x – 5) OR y + 5 = (3/4)(x – 3)

B.

y + 4 = (4/3)(x – 0) OR y – 0 = (4/3)(x – 3)

C.

y + 8 = (4/3)(x + 3) OR y – 4 = (4/3)(x – 0)

D.

y – 3 = (3/4)(x – 5) OR y – 3 = (3/4)(x – 3)

Question 6

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Express an equation of the line passing through (-2, 2) and parallel to the line in the graph.

Select one:

A.

y – 2 = (4/3)(x – 2)

B.

y – 2 = -(3/4)(x – 2)

C.

y + 2 = (4/3)(x – 2)

D.

y – 2 = (4/3)(x + 2)

Question 7

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Express an equation of the line passing through (-2, 2) and perpendicular to the line in the graph.

Select one:

A.

y – 2 = (-4/3)(x – 2)

B.

y – 2 = (-3/4)(x – 2)

C.

y – 2 = (-3/4)(x + 2)

D.

y – 2 = (3/4)(x + 2)

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Determine whether the lines through each pair of points are paralell, perpendicular, or neither. (2, 4) and (6, 1); (1, -2) and (-3, 1)

Select one:

A.

Parallel

B.

Perpendicular

C.

Neither

D.

Can’t determine

Question 9

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Determine the x-intercept of the line with the equation 2x – 3y = 1.

Select one:

A.

(2, 0)

B.

(1/2, 0)

C.

(-1/2, 0)

D.

(2, -3)

Midterm Exam II-Part I

Question 10

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Determine the y-intercept of the line with the equation 2x – 3y = 1.

Select one:

A.

(2, -3)

B.

(0, -3)

C.

(0, -1/3)

D.

(0, 1/3)

Question 11

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Determine whether the ordered pair (-5, 2) is a solution of the system x – 4y = -13
2x + 3y = 4

Select one:

A.

Yes

B.

No

C.

Can’t determine

Question 12

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Solve the systemx – y = 4

x = -2

by the method of your choice.

Select one:

A.

(-2, 6)

B.

(-2, -6)

C.

(2, -6)

D.

(6, -2)

Question 13

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Solve the systemx = 2

y = 5

by the method of your choice.

Select one:

A.

(5, 2)

B.

(-2, -5)

C.

(2, 5)

D.

(2, -5)

Question 14

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Solve the system8y = 4x

7x + 2y = -8

by the method of your choice.

Select one:

A.

(-1, -1/2)

B.

(1, 1/2)

C.

(1/2, 1)

D.

(8, 4)

Feedback

The correct answer is: (-1, -1/2)

Question 15

Question text

Solve the systemx – 4 = 0

9x – 2y = 0

by the method of your choice

Select one:

A.

(18, 4)

B.

(4, -18)

C.

(4, 18)

D.

No solution

Question 16

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When solving the system3x + 4y = 13

5y – x = -21

using the addition method, what is the best course of action?

Select one:

A.

Multiply the second equation by 4 and then add the equations.

B.

Multiply the second equation by -5 and then add the equations.

C.

Multiply the second equation by 3 and then add the equations.

D.

Multiply the second equation by -3 and then add the equations.

Question 17

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When solving the system3x + 4y = 13

5y – x = -21

using the substitution method, what is the best course of action?

Select one:

A.

Solve the second equation for x and then substitute it into the first equation.

B.

Solve the first equation for x and then substitute it into the second equation.

C.

Solve the second equation for y and then substitute it into the first equation.

D.

Solve the first equation for y and then substitute it into the second equation.

Question 18

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Solve the system3x + 4y = -13

5y – x = -21

by the method of your choice.

Select one:

A.

(-97/23, -2/23)

B.

(-1, -4)

C.

(1, -4)

D.

(-4, 1)

Question 19

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Solve the system4x – 2y = 10

y = 2x + 3

by the method of your choice.

Select one:

A.

(2, -1)

B.

(2, 1)

C.

Infinitely many solution

D.

No solution

Question 20

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You invested $9000 in two CDs paying 4% and 7% annual interest. At the end of the year, the total interest from these investments was $555. How much was invested at each rate if x is the amount invested at 4% and y is the amount invested in 7%?

Select one:

A.

x = $3500 and y = $5500

B.

x = $2500 and y = $6500

C.

x = $1500 and y = $7500

D.

Can’t determine

Midterm Exam II-Part I-MATH.10.HFS1

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