Sem 1 Finals Review

Ch 1

100

Is the following a function or not?

X  |  0   5   10   15

Y  |  3   7    7    11

Yes

200

Evaluate

1 + 6 / (2 + 1) - 1

2

300

The product of 5 and a number k is less than 60

5k < 60

400

2u² + v when u = 3 and v = 7

25

500

Is -2 a solution?

4y – 1 > -20

Yes

Ch 2

100

Solve:

5 (x + 3) = 5x + 3

No solution

200

Solve: 

x  =  30

5       8

x = 18.75

300

Solve:

4x – 4 + 12x – 15 = 45  

x = 4

400

12x + 6 = 6(2x + 1)  

Infinite solutions

500

Write the equation.  Then find the variable.

Ann took a taxi home from the airport.  The cost of the taxi was $2.10 per mile.  She then gave the driver a tip of $5.  If Ann paid a total of $28.10, how many miles was her trip home?

x = 11 miles

Ch 3

100

Solve for y.

-5x = -y - 11

y = 5x - 11

200

Graph the line:

y = 2/3x - 6 

 

300

Graph the line:

4x - 2y = 8

 

400

Write the equation of a line perpendicular to:

y = 5x + 7

y = -1/5x + b

500

Write the equation of the following graph:

y = -1/4x + 3

Ch 4

100

Write the equation of a line in point-slope form with a slope of -4/5 passing through (11, -13)

y + 13 = -4/5 (x - 11)

200

Write the equation of the line in slope-intercept form with a slope of -2 passing through (3, -5)

y = -2x + 1

300

Write the equation of the line in point-slope form that passes through (2, -1) and (4, 2)

y + 1 = 3/2 (x - 2)

OR

y - 2 = 3/2 (x - 4)

400

Write the equation of the line in slope-intercept form that passes through (1, -4) and (-1, 10)

y = -7x + 3

500

Write the function that has values f(3) = 1 and f(-2) = -9

f(x) = 2x - 5

Wild Card

100

Evaluate:

89 + {6 + 3(-6 - 5) + 25}

153

200

When Miguel was 6 years old, his little sister, Leila, was half is age. If Miguel is 40 years old today, how old is Leila?

37 years old

300

-1 + 1 x (-1) - 1 + 1 / 1 + (-1)

-3

400

Find the slope:

2

500

How much is a third of a half?

1/6