
Quadratic formula is

'a' is the coefficient of x^2 = 4
'b' is the coefficient of x = 2
'c' is the constant = -1
Now we plug in all the values in quadratic formula



The above one is the substitution of values of a,b,c in quadratic formula.
Answer:
The slope of line e is -5/6
Step-by-step explanation:
The slope of line d that passes through (3,4) and (8,10) is 6/5. To find the slope of a perpendicular line you simply change the sign and flip the numerator and denominator.
Answer:
Step-by-step explanation:
Answer: C
Step-by-step explanation:
Answer:
C ( i think)
Step-by-step explanation: