Vocabulary
the name for the unknown number that is represented with a letter
variable
2x + 5x =
3x + 9 = 30
x = 7
What is the longest side of a right triangle called?
hypotenuse
Find the slope of the line that passes through (-4, 5) and (2, 1)
the name for a number whose value will always remain the same (no variable)
constant
2x - 5x
-3x
4(2x-5) = 60
x = 10
Do the following side lengths form a right triangle?
4, 3, 2
Write the equation of the line that goes through the point (0, 4) and has a slope of 2.
y=2x+4
the number in front of a variable in a variable term
EX: 5x (what is the 5 called?)
co-efficient
2x·5x
10x2
x/3 + 5 = 20
x = 45
Do the following side lengths form a right triangle?
1.2, 1.6, 2
The slope of a line is 4 and it passes through the point (8, 2). What is the y-intercept.
-30
the name of the rule that tells us how the sides of a right triangle are related to each other
Pythagorean Theorem
x3·x5
x8
3x + 10 = 2x
x = -10
In a right triangle, a=12, b= ?, c=13. Find the value of b.
5
Write the equation of the line that passes through (-1, -2) and (0, 3)
y=5x+3
The form of a linear equation that looks like y-y1=m(x-x1)
Point-slope form
(x3)4
x12
Solve 3x2-2=46
4 and -4
In a right triangle, a=?, b=3, c=3.4. Find the value of a.
a=1.6
Write the equation of the line that goes through (3, -2) and (-6, -8)
y=(2/3)x-4