The first, third, fifth, and last one are right. Do you want me to show you the steps or are u good
Basically slope is how steep a straight line is and an intercept is where a line crosses the x-axis and y-axis. It's easier to use it than it is to explain it. In a slope-intercept formula (y= mx+b) m = slope and b= y-intercept. With this info you can solve different problems and graph equations.
"Best way to solve this equation" is very, very broad.
You could solve this equation two ways:
You could solve for x, or you could solve for k.
K has already been solved for, as it is equal to x^2.
We can also solve for x.
x = √k