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vodomira [7]
3 years ago
14

Which points are on a plane curve described by the following set of parametric equations?

Mathematics
1 answer:
Vlad1618 [11]3 years ago
8 0

ANSWER

The points (1,2) and (7,2) lie on the given curve.

EXPLANATION

The given parametric equations are:

x = 3t + 4

and

y = 2 {t}^{2}

We make t the subject in the first equation to obtain:

t =  \frac{x - 4}{3}

We substitute this into the second equation to get:

y =2{(\frac{x - 4}{3} )}^{2}

When x=1,

y = 2 {(\frac{1 - 4}{3} )}^{2}  = 2

When x=2

y =2{(\frac{2- 4}{3} )}^{2}  =  \frac{8}{9}

When x=7,

y =2{(\frac{7 - 4}{3} )}^{2}  = 2

Therefore the points (1,2) and (7,2) lie on the given curve.

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