Semester exam review

The value of 3 is a solution to which inequality?

• 
  

  $-2x+1>5$
  

• $9>4x-3$

• $\frac{3}{2}x<5$

• $\frac{x}{3}+1\ge7$

Heather has $15 to spend at the carnival. It costs $3.60 to enter the carnival and each ride costs $1.50. What is the greatest number of rides Heather can ride?

• 5

• 6

• 7

• 8

What is the slope of the line that passes through the points (3, -2) and (3,5)?

• 0

• Undefined

• 1/2

• 7

Which describes the graph of

 $f\left(x\right)=-3x+5$  ?

• A line with a slope of 5 and a y-intercept of -3

• A line with a slope of -3 and a y-intercept of -5
  

• A line with a slope of -3 and a y-intercept of 5
  

• A line with a slope of 5 and a y-intercept of 3

What is the y-intercept of the line  $-3x+4y=-12$  ?

• 4

• -3

• 0

• -12

A student bought concert tickets online. The total cost, c, in dollars, of t tickets can be found using the function c = $24.50t + 9.50. If the student spent a total of $230 on tickets, how many tickets did he buy?

• 9 tickets
• 5644 tickets
• 24 tickets
• 9.50 tickets

Does the table represent a function?

• yes, because the y-values repeat
• Yes, because the x-values don't repeat
• No, because the y-values repeat
• No, because the x-values don't repea

 $Given\ ax-b=c,\ solve\ for\ x.\$  

•  $x\ =\ \frac{c+b}{a}$  

•  $x\ =\ \frac{c-b}{a}$  

•  $x\ =\ \frac{a+b}{c}$  

•  $x\ =\ \frac{c+a}{b}$  

Is the sequence arithmetic?

17, 9, 1, -7, ...

• Yes

• No

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D: {-4, 0, 1, 2}
  R:{-4, -3, 1}
• D: {0, 1, 2, 3, 4}
  R:{1, -3, -4}
• D: {0, 1, 2, -4}
  R: {1, -3, -4, 1}