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2 years ago

Does anybody know what they mean when for question 3 says evaluate the expression wen c=3? Please help...

Mathematics

1 answer:

alexira [117]2 years ago

6 0

What they mean is plug in 3 for c, so it would be:
2 x 3(3+2) + 4(3+3)

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Answer:

The slopes of line segments AC and AD are same or constant i.e $\frac{1}{3}$

Step-by-step explanation:

We need to find slopes of AC and AD and tell if they are same or not.

The formula used to calculate slope is: $Slope=\frac{y_2-y_1}{x_2-x_1}$

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We have $x_1=3, y_1=2, x_2=0,y_2=1$

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{1-2}{0-3}\\Slope=\frac{-1}{-3}\\Slope=\frac{1}{3}$

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We have A=(3,2) and C=(9,4)

Finding slope using formula:

We have $x_1=3, y_1=2, x_2=9,y_2=4$

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{4-2}{9-3}\\Slope=\frac{2}{6}\\Slope=\frac{1}{3}$

So, Slope of AD is $\frac{1}{3}$

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