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3 years ago

If f(x)=3x+7 and g(x)=2x-5 find g(f(-3))A. -26 B.-9 C. -1 D. 10

1 answer:

3 0

$f(x)=3x+7 \\ g(x)=2x-5 \\ \\ g(f(-3)) = ? \\ \\f(-3)=3x+7 =3 \cdot (-3)+7=-9+7=-2 \\ \\ g(-2)=2x-5 =2*(-2)-5=-4-5 = -9\\ \\ g(f(-3)) = -9 \\ \\ Answer: \ B.) \ \ -9$

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What is the relationship between x and y

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Given that the table with values of x and y.

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The slope of the relation can be determined using the formula,

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Substituting the points (2,11) and (4,9), we get;

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The y - intercept of the relation is the value of y when x = 0.

Hence, from the table, it is obvious that when x = 0, the value of y is 13.

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The relationship between x and y can be determined using the formula,

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$y=-x+13$

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