Y-intercept =12
Slope : y2-Y1/x2-x1
8-10/2-1
Slope : -2
Answer:
f(7) = - 25
Step-by-step explanation:
To evaluate f(7) substitute x = 7 into f(x), that is
f(7) = - 5(7) + 10 = - 35 + 10 = - 25
When a quadratic equation ax^2+bx+c has a double root, the discriminant,
D=b^2-4ac=0
Here
a=2,
b=b,
c=18
and
D=b^2-4ac=b^2-4*2*18=0
solve for b
b^2-144=0
=> b= ± sqrt(144)= ± 12
So in order that the given equation has double roots, the possible values of b are ± 12.
-512.
Type negative 8 to the third power in google. It really is the answer. :)
5 - 2 = 3
3 x ? = 24
(24 ÷ 3 = 8)
3 x 8 = 24
