The width, length, and height of a rectangular prism are each increased by 10% . What is the percent increase in the volume of the prism? Express your answer to the nearest whole number.
1. Find the Slope
Finding the slope is relatively simple once you remember the formula. For me, I could not memorize any formulas unless I put them in words. I remember this formula as the ratio of the difference in y-values to x-values, if that helps. Anyway, here is the formula.
\(m=\frac{y_2-y_1}{x_2-x_1}\)
\(m=\frac{y_2-y_1}{x_2-x_1}\) | Now, plug in the coordinates into their respective positions in the formula. |
\(m=\frac{5+16}{4+3}\) | Simplify the value of the slope completely. |
\(m=\frac{21}{7}=3\) | |
Now that the slope has been determined, one can move on to the next step.
2. Plug in a Coordinate for X and Y to Solve for B.
We now know the slope, so the equation of the line is now \(y=3x+b\). Based on the given info, we know that both Cartesian coordinates, (-3,-16) and (4,5) lie on this line. Substitute one point in its place for x and for y to findt he answer.
\(y=3x+b\) | I will substitute the second point, \((\textcolor{red}{4},\textcolor{blue}{5})\) in the equation. It does not matter which point one chooses to substitute in. |
\(\textcolor{blue}{5}=3*\textcolor{red}{4}+b\) | Notice how the substitution replaces the coordinate. Now, solve for b. |
\(5=12+b\) | Subtract 12 from both sides to isolate b. |
\(b=-7\) | |
3. Write the Final Equation
Now that the only two necessary items, m and b, have been solved for, write the equation in y=mx+b format.
m=3
b=-7
\(y=3x-7\)
You are done now!
V =W x H x L
V =1.1 x 1.1 x 1.1
V =1.331 - 1 x 100 =33.1%=~33%. No matter what dimensions you choose for W, H, L, if you increase them ALL by 10%, the increase in volume will always be 33.1%.
Find the equation of the line passing through the points (-3, -16) and (4,5). Enter your answer in "y=mx+b" form.
1. Find the Slope
Finding the slope is relatively simple once you remember the formula. For me, I could not memorize any formulas unless I put them in words. I remember this formula as the ratio of the difference in y-values to x-values, if that helps. Anyway, here is the formula.
\(m=\frac{y_2-y_1}{x_2-x_1}\)
\(m=\frac{y_2-y_1}{x_2-x_1}\) | Now, plug in the coordinates into their respective positions in the formula. |
\(m=\frac{5+16}{4+3}\) | Simplify the value of the slope completely. |
\(m=\frac{21}{7}=3\) | |
Now that the slope has been determined, one can move on to the next step.
2. Plug in a Coordinate for X and Y to Solve for B.
We now know the slope, so the equation of the line is now \(y=3x+b\). Based on the given info, we know that both Cartesian coordinates, (-3,-16) and (4,5) lie on this line. Substitute one point in its place for x and for y to findt he answer.
\(y=3x+b\) | I will substitute the second point, \((\textcolor{red}{4},\textcolor{blue}{5})\) in the equation. It does not matter which point one chooses to substitute in. |
\(\textcolor{blue}{5}=3*\textcolor{red}{4}+b\) | Notice how the substitution replaces the coordinate. Now, solve for b. |
\(5=12+b\) | Subtract 12 from both sides to isolate b. |
\(b=-7\) | |
3. Write the Final Equation
Now that the only two necessary items, m and b, have been solved for, write the equation in y=mx+b format.
m=3
b=-7
\(y=3x-7\)
You are done now!