Can anyone asnswer any of these questions?? I don't get this topic

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

The formula to determine energy is e=1/2mv2? what is the formula solved for v?