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Draw a diagram to show that \((2x +5)(x+3)\) is equivalent to \(2x^2 + 11x+15\).
Match each quadratic expression that is written as a product with an equivalent expression that is expanded.
\((x+2)(x+6)\)
\((2x+8)(x+2)\)
\((x+8)(x+4)\)
\((x+2)(2x+6)\)
\(x^2 + 12x+32\)
\(2x^2 + 10x+12\)
\(2x^2 + 12x + 16\)
\(x^2+8x + 12\)
Select all expressions that are equivalent to \(x^2 + 4x\).
\(x(x+4)\)
\((x+2)^2\)
\((x+x)(x+4)\)
\((x+2)^2 - 4\)
\((x+4)x\)
Tyler drew a diagram to expand \((x+5)(2x+3)\).
Explain why the values of the exponential expression \(3^x\) will eventually overtake the values of the quadratic expression \(10x^2\).
A baseball travels \(d\) meters \(t\) seconds after being dropped from the top of a building. The distance traveled by the baseball can be modeled by the equation \(d=5t^2\).
Which graph could represent this situation? Explain how you know.
Graph A
Graph B
Consider a function, \(q\), defined by \(q(x)=x^2\). Explain why negative values are not included in the range of \(q\).
Based on past concerts, a band predicts selling \(600-10p\) concert tickets when each ticket is sold at \(p\) dollars.
| ticket price (dollars) | number of tickets | revenue (dollars) |
|---|---|---|
| 10 | ||
| 15 | ||
| 20 | ||
| 30 | ||
| 35 | ||
| 45 | ||
| 50 | ||
| 60 | ||
| \(p\) |
A population of bears decreases exponentially. The population was first measured in 2010.
Equations defining functions \(a, b, c, d,\) and \(f\) are shown here.
Select all the equations that represent exponential functions.
\(a(x) = 2^3 \boldcdot x\)
\(b(t) = \left(\frac{2}{3}\right)^t\)
\(c(m) = \frac{1}{5} \boldcdot 2^m\)
\(d(x) = 3x^2\)
\(f(t) = 3 \boldcdot 2^t\)