3x-y =7
+ 2x+y = 8
5x+0 =15
5x = 1/125, What is x?
x = -3
(2x-5)(3x+2)
6x2-4x-10
What is the y-intercept of y = 3 x2 + 9 x + 5?
(0,5)
What is the mean of 44, 22, 134, and 200?
100
What is the intersecting point for these two equations?
4x + 2y = 10
-4x + 4y = -4
(2, 1)
9x=36
x = 3
(6x2+4)-(3x2+5)
3x2-1
What's the vertex of y = x2 - 4 x - 3?
(2, -7)
What is the mean of the following numbers?
88,99,31,47,68,27
60
6x - 19 = 3x - 10
x = 3
32x=81
x = 2
(-4x2+2x-3)+(5x2-4x+8)
x2-2x+5
What is the y-intercept of y = x (x-7) - 2?
(0, -2)
If Peter has $30, Paul has $40, and Mary has $80, what is the mean (average) amount of money that each has?
50$
5 - 2(x - 1) = 4(3 - x) - 2x
x = 5/4
y=−2ex−3−5
y = -5
Is this a function?
Answer:
Yes
Find the vertex of y = -4 x2 - 4 x + 9
(-0.5, 10)
What is a median?
The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average.
What makes an equation linear?
An equation that is dependent only on constants and a variable raised to the first power.
f(x)=5ex−2−2
y = -2
What is a Polynomial?
A polynomial is defined as an expression which is composed of variables, constants and exponents.
What is the y intercept of y = 0.1 x2 + 0.5 x + 0.2?
(0, 0.2)
What is the difference between the median and the average?
The average is the arithmetic mean of a set of numbers. The median is a numeric value that separates the higher half of a set from the lower half