Simplify: 8x-3x
5x
Solve: x + 7 = 12
x=5
What is the slope of y = 4x - 2?
m = 4
Find the hypotenuse of a right triangle with legs 3 and 4.
5
Is 4x2+3 a polynomial?
Yes
Simplify: 7x+4-2x+9
5x+13
Solve : 3x- 8 = 10
x=6
What is the y-intercept of y = -3x+6?
b = (0,6)
Find the distance between (0,0) and (6,8).
10
What is the degree of the following polynomial: 5x4+2x.
Degree 4
Simplify: 4x2 + 3x - 2x2 + 5x
2x2 + 8x
Solve: 4(x-2) = 16
x=6
Does the point (2,5) satisfy: y=2x+1
Yes
Find the distance between (1,2) and (4,6).
5
Is x1/2 + 2 a polynomial?
No
Simplify: 5(2x - 1) - 4x + 8
6x + 3
Solve: 3(x+5)-2x = 17
x=2
Find the slope through (-1,4) and (3,-4).
m = -2
Find the distance between (-2,1) and (4,9).
10
Is 3x-2 + 1 a polynomial?
No
A student says 3x2 + 5x + 2x2 = 10x2. Is the student correct?
No. Correct answer: 5x2 + 5x.
5(2x-3)+7=4x+19
x = 3
Without solving, how many solutions does the system of equations have?
y=2x+1
y=2x-5
No solutions
Find the distance between (1,2) and (6,14).
13
"Every expression with a variable is a polynomial." Is this statement correct? Provide a counter example if you disagree.
No. Ex: rooting a variable, dividing by a variable, negative exponent on a variable, variable raised to the power of a fraction.