Question

For y=-x² + 7x - 10 find the:
i) y-intercept
ii) x-intercepts
iii) equation of the line of symmetry
iv) coordinates of the vertex.

​

Answer 1

Answer:

I think it is x- intercept.

Answer 2

Step-by-step explanation:

Y-INTERCEPT :-. X=0 ;

So substitute in equation we get ,

y = -10 .

X-intercept :-. y=0 ;

so substitute in equation we get

-(x+5) (x+2) = 0

EQUATION OF LINE OF SYMMETRY:-

Y=ax^2+bx+c

y=-x² + 7x - 10

so a=-1 , b=7 , c= -10

x= -b/2a = 7/2

x=7/2 is line of symmetry .