Help with Pre-Calculus

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xxxx xxx the step xx step explanations xxx xxx (A+ xxxxx

just xxxxx in Q-7 so x am xxx charging xxx xxx

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Do xxx steps with xxxxx explanations xxxxxxx xx xxxx was xxxx xx the examples in xxx xxxxxx

xxxxxx xxx xx xx xxxx the xxxx at the end xx xxx xxxxx

xxxx the xxxx xxxxxxx by the xxxxxxxxxxx

y x xxx xxx x x 4

xx xxx xxxx the xxxxx xx xxxxxxxx points

x x xxx

The figure xxxxxx will xx x xxxxxxxx xx shown in xxxxxxx

xxx y = 4 we xxx points (0, xx (5, 4) joining xx get the graph.

xxx x xxxx we xxx the xxxxx xx shown xx xxxx

Point xx xxxxxxxxxxxx xxx xxx 4) and xxxx 4)

So we get xxxx of xxxxxxxx xx 8 xxxxxx

xxx height xx xxxxxxxx as x xxxxxx

Area x ½ x x * 4 x 16 sq units

xxx

Solve each xxxxxx using either xxx xxxxxxxxxxx method xx the substitution method. Verify xxxx result xx xxxxxxxx xxxx system. Indicate xxx point xx intersection on your xxxxxx

xx + y = xxxx

xxx x xx = 5

xxxxx verify your result by graphing the system xx equations given.

2x + y = xx

-2x x xx x xx

Adding xxx xxx xxxxxxxxx we can eliminate x

We xxxx

4y x

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