10/14 Inequalities RE-TEST

What inequality does the number line graph represent?

• x ≤ 4
• x ≥ -4
• x < -4
• x < 4

What inequality does the number line graph represent?

• -x + 4 ≥ -1
• -2x + 3 > -7
• -x + 1 < -4
• 2x + 3 ≥ 13

When you graph an inequality, you used a closed dot when you use which symbols?

• ≤, ≥ 
• <, >

When graphing an inequality, you use an open dot when you use which symbol?

• <, >
• ≤, ≥ 

Write an inequality for this situation:
You are driving, and the maximum speed limit is 55.

• s < 55
• s > 55
• s ≤ 55
• s ≥ 55

you must be at least 48 inches to ride the roller coaster.

• x > 48
• x < 48
• x ≤ 48
• x ≥ 48

Which choice symbolizes "either less than or equal to"?

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

A function has a discriminant of 25.
______________
How many solutions does it have?

• 0
• 1
• 2
• 5