Question

Math help

Answer 1

x and y intercepts are easy to find. Just substitute 0 for y or x and solve for the other.

Answer 2

First one is y=-5x+10. What is the y intercept?

Answer 3

The first one is A correct?

Answer 4

good job.

Answer 5

how do you do the next one?

Answer 6

well, is there any value of x where both equations have the same value of y?
set them equal to each other and solve for x. if you get an answer, they intersect. if you get something like 0 = 0, then they are identical (and have infinitely many solutions). If you get something like 2=3, then they do not intersect and have no solutions.

Answer 7

And to get the point that they intersect take that point you find by setting them equal and plug it back into the one of the original equations for x and solve for y, and that's the exact point they intersect.

Answer 8

is the answer C?

Answer 9

x-3=-5x+2 get x's on one side and constants on the other

6x-3=2

6x=5

x=5/6

There is a solution! x=5/6

Answer 10

Next one?

Answer 11

I'm going to say this one last thing to help you with the last one then go to bed.

Answer 12

The vertex of a parabola is the crest, or the tip, of the "u" shape! So looking at the graph, at what point can you find the tip of the "u"?

To know if the vertex is a minimum or a maximum, you just need to look at it!

Minimum= lowest point on graph
Maximum= highest point on graph

So if the parabola open upwards then the vertex is a minimum because it's the lowest point of the graph

If the parabola open downwards then the vertex is a maximum because it's the highest point on the graph

Answer 13

Would the answer be D?

Answer 14

I mean B

Answer 15

Look again. The vertex is a point on the graph (x,y)

Answer 16

@whpalmer4 can you take over to see if @whitneykiana gets the answers right? I need to get some sleep!

Answer 17

@whitneykiana what's your latest guess? :-)

Answer 18

Remember, coordinates are (x,y) where x is the "right-left" measurement and y is the "up-down" measurement.

Answer 19

Im done with all these problems!! thanks for the help

Answer 20

well, if you answered A, C or D you might want to not be done yet :-)