Find the tangent lines parallel to the curve y=x^2 passing through (0, -4).
i have the answers i just need to understand it.

Agiven line has the equation 2x + 12y = −1. what is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)? y = ( )x + 9

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?