11. State whether each function is linear or non-linear. If the function is linear, identify its slope and y-intercept.

a. $\displaystyle y=5x-2$

b. $\displaystyle y=x^2$

c. $\displaystyle x=4y$

My teacher kinda skipped on how to find the slope and the x/y-intercept of a function, and I couldn't really find a proper lesson. Can anyone explain?