1. How does d change when t is doubled and r is held constant?
* d is doubled when t is doubled and r is held constant.
2. How does d change when r is doubled and t is held constant?
d is doubled when r is doubled and t is held constant. .
3. How does d change when r and t are both doubled?
d is multiplied by 4 when rand t are both doubled.
4. How does d change when rand t are both multiplied by 3?
d is multiplied by 9 when r and t are both doubled.
5. Upon which does the value of d depend?
the value of d depends on both rate and time.
6. How does distance vary with the product of rate and time?
*. d varies directly with the product of rate and time.
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