Answer:
Option C is correct i.e. 2.
Step-by-step explanation:
Given the function is f(x) = x² +8x -2.
We can compare it with general quadratic expression i.e. ax² +bx +c.
Then a = 1, b = 8, c = -2.
We can find the number of real root by finding discriminant of the equation ax² +bx +c =0 as follows:-
D = b² -4ac
D = 8² -4*1*-2
D = 64 +8
D = 72.
When D is a positive value, then we have two real roots of the equation.
Hence, option C is correct i.e. 2.
Answer is B. The slope in the table is 2
((9-5)/(1-(-1)) = 2
This means that the y intercept of it is (0,7)
B has a slope of 3 and y intercept of 7.5
Answer:
28364.67
Step-by-step explanation:
28364.67 Is twenty eight thousand compared to two thousand
Answer:
7.75+1.25x=31.50
Step-by-step explanation:
so in the end the answer is 19
Answer:
1/4
Step-by-step explanation:
y2-y1/x2-x1=m
6-5/9-5=1/4