Graphing
In the form y=mx+b, what does the b represent?
Solve for x:
2x+13=65
x=26
A circle has a radius of 5 cm. What is the circle's diameter?
10 cm
What is the difference between experimental and theoretical probability?
Theoretical- what should happen
Experimental- what actually happens
You roll a single die numbered from 1 to 6. What is the probability of rolling an odd number, expressed as a fraction?
3/6 or 1/2
What is the slope of the equation
y=-3/2x+10 ?
-3/2
Solve for x:
4(2x+3)=4
x=-1
A circle's equation is (x-8)2+(y-4)2=9
What is the center of the circle?
(8,4)
Jakari has a bag of marbles with the following colors: 5 red, 4 blue, 1 white, and 5 green. What is the probability of randomly selecting a blue marble from the bag?
4/15
A function is defined by f(x)=4x-1.
What is the value of f(5)?
19
Is (5,0) a solution for the equation
y=4/5x-4 ?
Yes
In August, a car dealer completed 15 more than 3 times the number of sales the car dealer completed in September. In August and September, the car dealer completed 363 sales. How many sales did the car dealer complete in September?
87
What do all angles in a triangle add up to?
180
Lauren conducted a survey about favorite genres of music. 4 people answered HipHop, 6 people answered Country, and 9 people answered Rock. What percentage of people preferred HipHop? Round to the nearest percent.
21%
Expand: (2x+1)(3x-4)
6x2-5x-4
What is the slope of the equation
3y+18=9x ?
3
A total of 165 people contributed to a charity event as either a donor or a volunteer. 130 people contributed as a donor. How many people contributed as a volunteer?
35
What is the difference between parallel and perpendicular?
Parallel- lines never cross.
Perpendicular- lines cross at 90 degrees.
Jordan wants to conduct a study of the injury rates of professional football players over the last 20 years. What type of study would this be considered?
Observational
Simplify: (2x2+x-9)+(x2+6x+1)
3x2+7x-8
What is the equation of a line that passes through (0,11) and (5,12)?
y=1/5x+11
If 8x = 6 , what is the value of 72x ?
54
A right triangle's legs are 5 cm and 6 cm. How long is the hypotenuse? Round to the nearest tenth.
7.8 cm
There are 12 men on the basketball team. 2 are centers, 5 are guards, the rest are forwards. What is the probability, as a percent, that out of two players chosen at random they would be a guard and a center?
58%
Solve using the quadratic formula:
x2 + 4x + 3 = 0
-1 and -3