X (year) | y ($ in billions)

1980 | 120

1985 | 165

1990 | 239

1995 | 290

2000 | 376

The table shows the billions of dollars spent on food and drink in U. S. restaurants for the years shown. Find the rate of change for 1980 to 1990.

Question

Mathematics

Beatrice Duncan

17 August, 19:56

X (year) | y ($ in billions)

1980 | 120

1985 | 165

1990 | 239

1995 | 290

2000 | 376

The table shows the billions of dollars spent on food and drink in U. S. restaurants for the years shown. Find the rate of change for 1980 to 1990.

+2

Answers (1)

Know the Answer?

Shyanne Odonnell · Answer 1

Rate of change is also another name for the slope so in this case, the question is asking you for the slope.

How can we find the slope?

The formula for slope is y2-y1/x2-x1

Now let's plug in for the year 1980 and 1990.

239-120/1990-1980

= 119/10

Slope is 119/10.

X (year) | y ($ in billions)1980 | 1201985 | 1651990 | 2391995 | 2902000 | 376The table shows the billions of dollars spent on food and drink in U. S. restaurants for the years shown. Find the rate of change for 1980 to 1990.

X (year) | y ($ in billions)

1980 | 120

1985 | 165

1990 | 239

1995 | 290

2000 | 376

The table shows the billions of dollars spent on food and drink in U. S. restaurants for the years shown. Find the rate of change for 1980 to 1990.