# ACT Math 4.3 Intermediate Algebra

ACT Math: Intermediate Algebra Drill 4, Problem 3. Which equation has an x intercept at 1?

ACT Math | Intermediate Algebra |

ACT Mathematics | Intermediate Algebra |

Algebra | Coordinates and Graphs |

Elementary Algebra | Evaluation of algebraic expressions through substitution |

Foreign Language | Arabic Subtitled Chinese Subtitled Korean Subtitled Spanish Subtitled |

Geometry | Coordinate Geometry |

Intermediate Algebra | Roots of polynomials |

Language | English Language |

Product Type | ACT Math |

### Transcript

has to be 0... and we are at the point 1, 0.

We can just brute force the answer by plugging in for equation A, here:

We have 1 squared which is 1... minus 3, which is negative 2... then add 4 to get positive

2, which... doesn't fit.

So A is not the droid we're looking for.

Now B. We have 1 minus 2 plus 1, which is...0.

There we go -- don't even need to bother with the others.

B's our boy.