Cody

# Problem 1633. Find the right x in a 1. order Polynomal (y = m*x+c)

Solution 270030

Submitted on 30 Jun 2013 by Carlos Adrian Vargas Aguilera
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### Test Suite

Test Status Code Input and Output
1   Pass
%% x = [1 2]; y = [5 6]; c = 5; y_correct = 1; assert(abs(getTheRightPosition(x,y,c)-y_correct)<1e-10)

``` ans = 1.0000 ```

2   Pass
%% x = [1 -2]; y = [1 -2]; c = 50; y_correct = 50; assert(abs(getTheRightPosition(x,y,c)-y_correct)<1e-10)

``` ans = 50.0000 ```

3   Pass
%% x = [1 -2]; y = [1 2]; c = 50; y_correct = -146; assert(abs(getTheRightPosition(x,y,c)-y_correct)<1e-10)

``` ans = -146.0000 ```

4   Pass
%% x = [1 1]; y = [1 -2]; c = 50; y_correct = 1; assert(abs(getTheRightPosition(x,y,c)-y_correct)<1e-10)

``` ans = 1 ```

5   Pass
%% x = [1 1]; y = [1 1]; c = 50; y_correct = NaN; assert(isequal(isnan(getTheRightPosition(x,y,c)),isnan(y_correct)))

```[Warning: Polynomial is badly conditioned. Add points with distinct X values, reduce the degree of the polynomial, or try centering and scaling as described in HELP POLYFIT.] [> In polyfit at 76 In getTheRightPosition at 2 In verifyCode>evaluateCode at 227 In verifyCode at 40 In fevalJSON at 14 In workspacefunc at 7] ans = NaN ```

6   Pass
%% x = [1 2]; y = [1 1]; c = 50; y_correct = NaN; assert(isequal(isnan(getTheRightPosition(x,y,c)),isnan(y_correct)))

```[Warning: Polynomial is badly conditioned. Add points with distinct X values, reduce the degree of the polynomial, or try centering and scaling as described in HELP POLYFIT.] [> In polyfit at 76 In getTheRightPosition at 2 In verifyCode>evaluateCode at 227 In verifyCode at 40 In fevalJSON at 14 In workspacefunc at 7] ans = NaN ```

7   Pass
%% x = [1 2]; y = [2 2]; c = 2; y_correct = Inf; assert(isequal(isinf(getTheRightPosition(x,y,c)),isinf(y_correct)))

```[Warning: Polynomial is badly conditioned. Add points with distinct X values, reduce the degree of the polynomial, or try centering and scaling as described in HELP POLYFIT.] [> In polyfit at 76 In getTheRightPosition at 2 In verifyCode>evaluateCode at 227 In verifyCode at 40 In fevalJSON at 14 In workspacefunc at 7] ans = Inf ```