Help, please!! factor completely over the set of integers: 16x^4-81. Sara graphed the polynomial y=16x^4-81 and stated "All the roots of y=16x^4-81 are real" Is sara correct? Explain your reasoning answer

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!

B. because the 7 represents "seven times", x represents "a number", 12 represents "plus twelve", and -4 represents "minus four"