equations
factor x^2 +10x + 16
(x + 8)(x + 2)
1.27729382.....
Is this rational or irrational?
Irrational
solve x+5/12 = x-2/8
16
Factor the quadratic
y = x2 + 9x + 18
factor x^2 - 49
(x + 7)(x - 7)
1.3333333333.....
Is this rational or irrational?
Rational
Paco went to the movies. He spent a total of $50. He spent $10 on food and saw 8 movies. How much did each movie cost?
5
Find the value of the function of f(x) = 2x + 11 when x = 5
43
Find the area of a rectangle if the length is 2 more than 5 times the width.
5x^2 + 5 x
What is the rate of change between ( 5,2) and (-2,3)
-1/7
You purchase a stereo system for $830. The value of the stereo system decreases 13% each year. What is the value of the system after 3 years?
$546.56
Which is an equation of the line containing the points (-1,5) and (3,9)?
y = x + 6
1. A ball is dropped from the top of a building. The distance in feet above the ground, represented by , after t seconds can be modeled by the equation h(t) = -16t2 + 180
From what height was the ball dropped?
180 ft
b2 - 4ac (discriminate) is negative. What does that mean for the quadratic?
It has no solutions/it does not touch the x-axis
At a baseball game, Jose bought five hot dogs and three sodas for $17. At the same time, Allison bought two hot dogs and four sodas for $11. Find the cost of one hot dog and one soda.
hot dogs $2.50 soda $1.50
Find 3 consecutive integers whose sum is 48.
15,16,17
A business purchases a computer for $2000. The value of the computer depreciates $400 per year. Which linear equation gives the value y of the computer after x years?
y = 2000 - 400 x
1. A ball is dropped from the top of a building. The distance in feet above the ground, represented by , after t seconds can be modeled by the equation h(t) = -16t2 + 180
How long did it take to hit the ground?
x= 3.35 seconds
A town with a population of 5,000 grows 3% per year. Find the population at the end of 10 years.
6,719.58