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Let me see if I remember. The intercept of an equation is the location on the xy-plane where the graph crosses the x-axis, y-axis or... -
logistic_guy replied to the thread PreCalculus - 5.1.1.\textcolor{blue}{\bold{Correct.}} 👏👏
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Last one for now. I think we have to evaluate for f(x) when x is 3. Yes? If so, let x = 3. f(3) = -4(3)^2 + 5(3) f(3) = -4(9) + 15...
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LDoes anyone have a good recommendation for math worksheets K-12? Any websites would be highly appreciated. Hope this is the correct...
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In 2006, the two main helpers for me in this and other forums were MarkFL and Soroban. I am not sure, but I think MarkFL passed away. In... -
In all my years playing with math textbooks, I have noticed that authors do not explain how to solve every type of problem. Instead...
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mathdad replied to the thread PreCalculus - 5.1.1.Last one for now. I think we have to evaluate for f(x) when x is 3. Yes? If so, let x = 3. f(3) = -4(3)^2 + 5(3) f(3) = -4(9) + 15...
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\textcolor{indigo}{\bold{Solve.}} Find f(3) if f(x) = -4x^2 + 5x.
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\textcolor{indigo}{\bold{Solve.}} Graph y = x^2 - 1.
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\textcolor{indigo}{\bold{Solve.}} The inequality -1 < x < 3 can be written in interval notation as \cdots
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mathdad replied to the thread PreCalculus - 4.1.1.Let me see if I remember. The intercept of an equation is the location on the xy-plane where the graph crosses the x-axis, y-axis or...
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\textcolor{indigo}{\bold{Solve.}} The intercepts of the equation 9x^2 + 4y = 36 are \cdots
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mathdad replied to the thread PreCalculus - 3.1.1.Let me see if I remember. I know that x^2 indicates a parabolic curve upwards. I know that -1 means to go down one unit on the y-axis...
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mathdad replied to the thread PreCalculus - 2.1.1.In interval notation, it is written (-1, 3).
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mathdad replied to the thread PreCalculus - 1.1.1.The number 0 is the answer.
