It depends on the sequence type.
if it's a regular sequence with a first common difference, you can use the formula a+d(n-1). here, "a" is the first term, "d" is the common difference and "n" is the term number.
The y-intercept is the starting point. Since the temperature started at -7, we know that b in y = mx + b has to be -7. m is the slope which in our case is 3 because the temperature is changing every hour. So, because the temperature is going up, it's +3. Our equation should be y = 3x - 7.
Answer:
7
Step-by-step explanation:You add the numbers and then divide by 5.
Answer:
y= -2x+1
Step-by-step explanation:
y=mx+b
Substitute the ordered pairs into the equation
So:
y= -1 m(slope) = -2 x=1 b=?
-1 = (-2)(1) + b
-1 = -2 +b add 2 on both sides to get b by itself
-1 +2 = b
b=1