Answer:
Opt B.
Step-by-step explanation:
Remember that the equation of a line tells us that y=mx+b, where m is the slope (Which we have and is -8), just need to find b, for that, lets eval the given point (1,-5) in the above equation.
-5=-8*1+b
Where we obtain that b=3
Our line is written as y=-8x+3
And in standard form that would be (grouping variables in the same side of equality sign)
y+8x=3
Range: y values
Solution: {5,2,-1,-6,4}
A. There is no coefficient of X.
It would be c. A perfect correlation will be either a 1 or a -1. The answer that is closest to one of these is c, -0.9.
Answer:
option 2
2x²- x - 1
Step-by-step explanation:
We are given points: (-1,2), (0,-1) and (2,5)
Substitute each point one by one in the quadratic equation to check if the quadratic equation contains all points mention.
2) f(x) = 2x²- x - 1
Point(-1,2)
f(-1) = 2(-1)² -(-1) -1
2 = 2 + 1 - 1
2 = 2
Point(0,-1)
f(0) = 2(0)² -(0) -1
-1 = 0 - 0 -1
-1 = -1
Point(2,5)
f(2) = 2(2)² -(2) -1
5 = 8 - 2 -1
5 = 6 - 1
5 = 5
