Need all the blanks this is for a project so I don’t want to get it wrong but confused on it all need explanation whoever does it I’ll give brainliest

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9