4x - 1 < 7
To solve for x:
4x - 1 + 1 < 7 + 1
4x < 8
Divide both sides by 4:
4x/4 < 8/4
x < 2
Answer:

Step-by-step explanation:
The parametric equations are described below:
and 
The slope-intercept equation is constructed by eliminating t from both formulae:
and 





In interval notation the domain would be: (-infinity,-2]U[2,3)U(3,+infinity)
Answer:
I believe this is pathgorean theorem, which I did at the beginning of alegbra last year. It is basically finding the missing side of a triangle. (Trust me some of the easiest stuff you do all year) Below are my notes from last year. I hope it helps! Good Luck!!!
Step-by-step explanation:
Given two sides
If you know two other sides of the right triangle, it's the easiest option; all you need to do is apply the Pythagorean theorem:
a² + b² = c²
if leg a is the missing side, then transform the equation to the form when a is on one side, and take a square root:
a = √(c² - b²)
if leg b is unknown, then
b = √(c² - a²)
for hypotenuse c missing, the formula is
c = √(a² + b²)