Find the equation of the line shown

y = 2x - 1

Step-by-step explanation:

By looking at when the line crosses the y- axis, the line has a y-intercept at (0, -1). In the form y = mx + b, the b value is equal to -1.

To calculate the slope, you can look at the rate of change between two points. By comparing (0, -1) and (1,1), the rate of change is 2/1 = 2. In the form y = mx + b, the m value is equal to 2.

After plugging in the values for m and b,

y = 2x - 1

x= -2

y=1

Step-by-step explanation:

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt