ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Mathematics and Statistics Assessment Videos 200 videos

TSI Math: Understanding Points of Intersection
17 Views

Two parabolas are graphed in the coordinate plane. Parabola A is a function, and parabola B is not a function. What is the maximum number of points...

TSI Math: Solving a Quadratic Equation for x
5 Views

What is x for the equation 2x² + 36 = -18x?

TSI Math: Finding a Line's x-Intercept Given a Point on that Line
4 Views

Which of the following points is a location where the function f(x) = -2x² + 12x + 54 crosses the horizontal axis?

See All

TSI Math: Knowing the Orientation of Positive and Negative Slopes on a Graph 8 Views


Share It!


Description:

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?


Transcript

00:03

All right tessa Mash members Here we go Another question

00:06

thrown at your head like a curveball from a baseball

00:08

diamond The graph of which the following equations is a

00:10

line that has a why intercept below zero and decreases

00:15

as you move from left to right So why intercept

00:22

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

00:25

or intercept the y axis This vertical thing below zero

00:29

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

00:32

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

00:35

we can already just looking at this get rid of

00:37

cnd because those have positive slopes right You got two

00:40

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

00:43

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

00:46

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

00:49

The cheerleaders had shmoop high just outside of dallas and

00:52

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

00:55

awesome supporters of the mathletes in the math club welcome

00:58

to shmoop if a graph decreases as we move left

01:01

to right across the coordinate play me why values become

01:04

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

01:07

of a negative slope we say slope you say intercepts

01:11

low intercept slope intercept the cheerleaders sure know their playbook

01:15

in the general slope intercept form y equals mx plus

01:18

b m represents thus slow conveniently all the answer choices

01:21

Aeryn this form so we can see that on ly

01:23

the equations why equals negative two x minus a a

01:26

and y equals negative three force acts be both have

01:29

negative slopes right So the correct line should have a

01:32

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

01:35

means the line crosses the y axis at a negative

01:38

value somewhere down here on this little pretty graph in

01:41

the slope intercept equation y equals mx plus b the

01:44

b is the y intercept for the line to intercept

01:47

the access below Zero b must be negative right So

01:50

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

Related Videos

TSI Writing: Revising a Letter by Adding Transitions
147 Views

Which is the best way to revise and combine sentences 1 and 2?

TSI Writing: Adding a New Sentence to Improve a Letter's Structure
27 Views

Where would the following sentence best be placed?

TSI Writing: Choosing the Best Introductory Transition
18 Views

Which of the following is best to insert at the beginning of sentence 8?

TSI Writing: Shifting a Letter's Structure to Improve the Organzational Flow
8 Views

Which is the best location for sentence 9?

TSI Writing: Choosing the Most Effective Sentence Structure
15 Views

Which of the following sentences is best to insert between sentences 11 and 12?