# TSI Math: Knowing the Orientation of Positive and Negative Slopes on a Graph

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The graph of which of the following equations is a line that has a y-intercept below zero and decreases as you move from left to right?

Elementary Algebra and Functions | Linear Equations, Inequalities, and Systems |

Mathematics and Statistics Assessment | Linear Equations, Inequalities, and Systems |

Product Type | TSI |

TSI | Mathematics and Statistics Assessment TSI Math TSI Mathematics |

TSI Math | Elementary Algebra and Functions |

TSI Mathematics | Elementary Algebra and Functions |

Test Prep | TSI |

### Transcript

below zero What does that mean It's going to intersect

or intercept the y axis This vertical thing below zero

so somewhere down here and it's going to decrease from

left to right i mean it's a negative slope so

we can already just looking at this get rid of

cnd because those have positive slopes right You got two

thirds that's positive and five x there that's positive So

we've narrowed down our things here real quick We love

slope it's our thing increase decrease Fight fight fight That's

The cheerleaders had shmoop high just outside of dallas and

they're not very inspiring football or basketball games but they're

awesome supporters of the mathletes in the math club welcome

to shmoop if a graph decreases as we move left

to right across the coordinate play me why values become

smaller is the x values become larger that's the definition

of a negative slope we say slope you say intercepts

low intercept slope intercept the cheerleaders sure know their playbook

in the general slope intercept form y equals mx plus

b m represents thus slow conveniently all the answer choices

Aeryn this form so we can see that on ly

the equations why equals negative two x minus a a

and y equals negative three force acts be both have

negative slopes right So the correct line should have a

why intercept below zero That doesn't mean it's freezing It

means the line crosses the y axis at a negative

value somewhere down here on this little pretty graph in

the slope intercept equation y equals mx plus b the

b is the y intercept for the line to intercept

the access below Zero b must be negative right So

so you got the negative eight there in that matches 00:01:53.419 --> [endTime] so that's it that's the answer It's a