Solve the Equation $20 x ^ { 2 } + 43 x = - 14$

question 165

Multiple Choice

Solve the equation. $20 x ^ { 2 } + 43 x = - 14$

• A) \(\left\{ - \frac { 7 } { 4 } , - \frac { 2 } { 5 } \right\}\)
• B) \(\left\{ \frac { 7 } { 4 } , \frac { 2 } { 5 } \right\}\)
• C) \(\left\{ - \frac { 7 } { 4 } , \frac { 5 } { 2 } \right\}\)
• D) \(\left\{ - \frac { 7 } { 4 } , \frac { 2 } { 5 } \right\}\)
• E) \(\left\{ \frac { 7 } { 4 } , - \frac { 2 } { 5 } \right\}\)

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Definitions:

y-Intercept Regression Coefficient

In linear regression, it is the value of the response variable when all predictor variables are zero, representing the point at which the regression line crosses the y-axis.

Independent Variable

The variable in an experiment or model that is manipulated or changed to observe its effect on a dependent variable.

Coefficient of Determination

This statistic measures the proportion of the variance in the dependent variable that is predictable from the independent variable(s).

Correlation Coefficient

A statistical measure that calculates the strength of the relationship between the relative movements of two variables, ranging from -1 to 1.