Answer:
y=x+1
Step-by-step explanation:
first find the slope using the two coordinates:
use the slope formula- m=y^2-y^1/x^2-x^1
6-2/5-1
=4/4
=1
y=mx+b
now plug in one of the coordinates, and the slope we just found into the slope intercept formula
2=1(1)+b
2=1+b
subtract 1 from both sides
1=b
1=b; m=1,
y=x+1
Answer:
=21k-18
Step-by-step explanation:
Answer:
81
Step-by-step explanation:
Answer:
It is increasing in the interval (-∞, 3/2).
Step-by-step explanation:
y = -x^2 + 3x + 8
The derivative is:
dy/dx = -2x + 3
This is the slope of tangent to the curve so when f(x) is increasing
-2x + 3 > 0
-2x > - 3
x < 3/2
So it is increasing in the interval (-∞, 3/2)