The algebraic expression in Example 1 has separate variables x and y in different terms. But in Example 2, the term 50lw contains two variables multiplied together. Example 2 also represents cost using area and fencing calculations.
Discussion Forum Latest Questions
In the algebraic expression 200l + 160w + 50lw, the terms are 200l, 160w and 50lw. The variables are l and w. The coefficients are 200, 160 and 50. There is no constant term in this expression.
After 3 years, the phone value becomes 7600 rupees. The relation between value and years is v = 10000 minus 800t. It represents linear decay because the value decreases by a fixed 800 rupees every year.
After 7 months, the plant height becomes 5.25 feet. The relation between height and months is h = 1.75 + 0.5t. It represents linear growth because the height increases by a constant 0.5 feet every month.
The water level starts at 3 metres and decreases by 0.5 metre every month. After each month, the height reduces regularly. This forms a linear decay pattern because the decrease remains constant with time.