Ma 105 Week 2 Assignment

MA 105 Week 2 Assignment

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MA 105 Week 2 Assignment

Question 2

Complete the table. Use the resulting solution points to sketch the graph of the equation.

Answer:

5 points

Question 3

Graphically estimate the x- and y- intercepts of the graph:

y = x3 – 9x

x-intercept: (±3,0),(0,0)

y-intercept: (0,0)

x-intercept: (3,0),(0,0)

y-intercept: (0,0)

x-intercept: (-3,0),(0,0)

y-intercept: (0,0)

x-intercept: (0,±3),(0,0)

y-intercept: (0,0)

x-intercept (0,3),(0,0)

y-intercept (0,0)

5 points

Question 4

Find the x- and y-intercepts of the graph of the equation

y=49-7x

x-intercept: (7,0)

y-intercept: (0,-7)

x-intercept: (49,0)

y-intercept: (0,7)

x-intercept: (-7,0)

y-intercept: (0,-49)

x-intercept: (49,0)

y-intercept: (0,49)

x-intercept: (7,0)

y-intercept: (0,49)

5 points

Question 5

Determine whether the value of x=7 is a solution of the equation:

no

yes

5 points

Answer: NO

Question 6

Solve the equation 8-5x=6

5 points

Question 7

Solve the equation and check your solution.

-2-4x=30

9

-11

-8

7

-10

5 points

Question 8

Solve the equation and check your solution.

5y + 1 = 6y – 5 + 8y

2/3

3/2

6/5

5/6

-2/3

5 points

Question 9

Solve the equation and check your solution.

67x – 24 = 3x + 8(8x-3)

3

67

-3

-67

All real numbers

5 points

Question 10

Solve the equation and check your solution.

10

6

7

9

8

5 points

Answer: 6

Question 11

Solve the equation and check your solution. (If not possible, explain why.)

2

5

6

4

10

5 points

Question 12

Solve the equation and check your solution. (If not possible, explain why)

-18

7

11

No solution. The variable is divided out.

20

5 points

Question 13

Write the quadratic equation in general...