the value of one integer is represented by x-7 and the value of a second integer is represented by x+4 for what values of x would their product equal zero

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?

How can you tell when x and y are not directly proportional?

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)