Yeah, number 18. Given a question is X equal toe minus y squared plus six way minus nine. Okay, so first of all, let us compare with X equal to a Y squired plus B Y plus C. We will be getting equal toe minus one and be equal to six. So over Tex is X comma minus B by to a which means why coordinate off the Vertex is minus me by two way, which is minus six by minus two. That is three. Yeah, And let us plug in this value of three in our original question to get the value fax. So x will be minus off. Three Squire plus six into three, minus nine. This will be minus nine plus 18 minus nine, which is equal to zero. So Vertex becomes Vertex becomes zero comma three. So this is our vertex. Okay, Now, toe, get ax intercept. We will be plugging in. Or why call to zero in our original question. So this will lead us to x equal toe minus nine. Okay, So minus nine comma zero is the X intercept for y intercept. We will be plugging in X equal to zero, so Ah, very question becomes minus y squared. Plus six Y minus nine. Equal to zero. Yeah, a little. Multiply both sides by minus one. This is why Squire minus six y plus nine equals zero, which is nothing. But why? Minus three Whole square. So off I will be equal to three. So why Intercept is a zero comma? Three. Okay, well intercepted. Zero commentary since, uh, why will have to Same value. That is why I called three and three. Because there is a whole square. So we can say that. Why? Excesses tendon shell toe the parabola. Okay, Now let us draw the parabola over Texas zero comma. Three acts interested to minus nine committed. Okay, So if this is why this is X So we have three six nine minus tree minus six, minus nine three six minus three minus six. Vertex is zero comma three. So this is the Vertex zero. Common. Three of the verdicts. Acts intercepted. Minus nine. Common zero. So this is our ex intercept minus nine comma zero. So axis of symmetry must be This is our axis of symmetry, which is what I call the three. So after a parable must look like this. It should pass through minus nine commands it also Okay? Yes. Supposed to passing through minus. We have to make it like this. Okay, got it. Okay, so in this case, our domain must be minus infinity to zero and the range minus infinity to plus infinity. Okay, so these are the values. Thank you.