last one y=5 (when x=0; y=5, parabolla crosses y in (0;5)
Step-by-step explanation:
I'll find x(s) in case u'll need this and then y intercept
function given:
y=x2+7x+5
to find x(s) you have to find Discriminant first:
D=b2-4ac=49-20=29
now lets plug D in x(s) formula which is:
X=(-b±√D)/2a
x1=(-b+√D)/2a
x1=(-7+√29)/2
x2=(-b-√D)/2a
x2=(-7-√29)/2= -(7+√29)/2a
to find y intercept, it means you have to find a point where parabolla crosses graph.
so you simply plug zeros for x-es:
y=1(0)+7(0)+5
y=5
hope i helped u❤️
