Show:
Rates & Proportions
Statistics
Exponents
Lines/Quadratics
Inequalities
100
State one version of the distance, rate, time equation.
D=rt, t=d/r, r=d/t
100
What is the middle number of a data set called?
the median
100
(5^2)(5^4)
5^6
100
Define slope.
rise/run, change in y/change in x, steepness
100
When do you flip the sign of an inequality?
When you multiply or divide by a negative number.
200
A plane flies 3000 miles in 6 hours. How many miles per hour is the plane flying?
500 mph.
200
What percentage of the values lie above the lower quartile (Q1)?
75%
200
(2x)^2
4x^2
200
What is the slope and y-intercept of the line y=2x-10
m=2, b=-10
200
Solve x-5<10
x<15.
300
A 500-page pad of paper costs $20.00. What is the cost per page?
.04 dollars, or 4 cents
300
On a scatterplot, if there is no apparent relationship between the variables, what do we call this?
No correlation.
300
(3xy)^4
(3^4)(x^4)(y^4)
300
Tell me a point on the line y=2x+4
many solutions.
300
Solve 8≥2x-2
5≥x or x≤5
400
What is a better deal for internet? $360 per 12 months or $220 per 7 months?
$360 per 12 months.
400
On a stem and leaf plot, what are the numbers to the right of the line called?
Leaves.
400
(10^0) + 2^(-2)
1 1/4 or 5/4
400
Calculate the slope of the line with points (2,1) and (-2,-3)
m=1
400
2-3y<26
y>-8
500
Five gallons of gas costs 15 dollars. How much do 6 gallons cost?
$18 dollars.
500
What is the line called on a scatterplot that estimates the relationship between the points.
Trendline, line of best fit, regression line.
500
(1/5)^10 ÷ (1/5)^12
(1/5)^(-2)
500
Describe the parabola y=-x^2-10
Upsidedown, with a y-intercept of -10
500
-a+9<0
a>9