Definitions
a relation in which each element of the domain is paired with exactly one element of the range
function
A number machine takes an input number and doubles it to produce an output. When you put in 2, 5, and 7 you get 4, 10, and 14. Is this a function?
yes
A skateboard ramp’s height above the ground is modeled by the equation: y = -x² + 6x. At what two points does it touch the ground?
x = 0 and x = 6
What is 13 times 31?
403
What are Ms. Skinners favorite colors? (name at least 3)
Yellow, gold, green, and black
an equation whose graph is a straight line
linear equation
Daniel and his brothers have a total of $60 to spend together at a thrift store. Shirts cost $4 and pants cost $6. They want to know how many pairs of pants they can buy if they buy a certain number of shirts. What are three combinations of shirts and pants Daniel and his brothers can buy for exactly $60? A combination must avoid 0
a combination of 3, 6, and 9
What are the x-intercepts of y = (x − 2)(x + 4)
x = 2 and x = 4
(500÷400)+3,421.5 = ?
3,422.75
Who is the most successful author in terms of sales?
William Shakespeare
the number that when multiplied by itself is equal to x
square root of x
A gym charges a $25 sign-up fee plus $15 per month, so the total cost after x months can be modeled by a function.
f(x) = 15x + 25; 115; 5
what is the axis of symmetry for y = 2x² − 8x + 6
x = 2
-3•482+(-600÷30) = ?
-1466
When was Apple founded?
1976
a second degree polynomial equation
quadratic equation
Tung Tung Tung Sahur buys and decorates plain sneakers. He sells each decorated pair for 20% more than he paid for them, plus $5 for the cost of supplies. Let x represent the cost in dollars of a pair of plain sneakers. Explain what the expression 15(x+0.20x+5) represents in this situation.
It represents the total amount of money Triple T earns from selling 15 decorated pairs of sneakers.
for y = -3x² + 12x − 7, does the parabola open up or down?
up down up DOWN
what is 20,476.28 x 281.964
5,773,573.81392
How many capitals has the United States had
9
the highest or lowest point on the graph of a function
vertex
Skylar is designing a square display area for his/hers/theirs/zhers/helicopters sneakers. The area of the square is x square feet, so each side of the display has a length of (the square root of x) feet. Skylar builds a border around the display, and the cost of the border is $8 per foot. What expression represents the total cost of the border?
32 times the square root of x.
find the axis of symmetry for y = 2x² − 8x − 10
x = 2
(-1,234,987 x -45.67) + (67 ÷ 421.69) + -0.00000000000001
round to four decimal places.
56,401,856.4489
what is the 27th letter of the alphabet
&