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Ex 1: Determine a Function Value From a Graph - YouTube YouTube Start of suggested clip End of suggested clip Value. So for f of negative four we'll find negative four on the x axis which is here. And then we'MoreValue. So for f of negative four we'll find negative four on the x axis which is here. And then we'll move up to the function. This is where x is equal to negative four.

Determine if the equation represents a function - YouTube YouTube Start of suggested clip End of suggested clip Now the next thing i need to do is i'm going to take the square. Root. That is going to get rid ofMoreNow the next thing i need to do is i'm going to take the square. Root. That is going to get rid of my y or y squared therefore i'm left with y equals. Plus or minus the square root of 4 minus x.

Ex: Find the Equation of a Quadratic Function from a Graph - YouTube YouTube Start of suggested clip End of suggested clip So now let's take a look at our graph. This would be our vertex. Notice how the vertex would have anMoreSo now let's take a look at our graph. This would be our vertex. Notice how the vertex would have an x coordinate of negative three. And a y coordinate of positive four.

How To Find The Equation of a Line From a Graph | Algebra - YouTube YouTube Start of suggested clip End of suggested clip Let's get the slope. Let's focus on these two points. So we need to rise 5 units and we need to runMoreLet's get the slope. Let's focus on these two points. So we need to rise 5 units and we need to run only two units to the right. I'm going to draw that better. So here's the rise up five over two.

Write Equation given Graph - YouTube YouTube Start of suggested clip End of suggested clip And we see that it's crossing right here at the coordinate of 0 comma. 1. So this part right hereMoreAnd we see that it's crossing right here at the coordinate of 0 comma. 1. So this part right here the y part is our B value. So we this tells us that our B equals.

Creating a Table of Values from a Linear Equation - YouTube YouTube Start of suggested clip End of suggested clip Whatever we want them to be. I don't know why i'm making it squiggly i'll make a straight line makeMoreWhatever we want them to be. I don't know why i'm making it squiggly i'll make a straight line make it look nice and easy. And so we make a table of values. With an x. Value. And y value.

Use a Graph to Solve an Equation - YouTube YouTube Start of suggested clip End of suggested clip Sign. So y equals the absolute. Value of x i'm actually going to change this one. And then minus 2MoreSign. So y equals the absolute. Value of x i'm actually going to change this one. And then minus 2 on the end this is just so we could get something that fits on our graph.

To find the equation of a graphed line, find the y-intercept and the slope in order to write the equation in y-intercept (y=mx+b) form. Slope is the change in y over the change in x. Find two points on the line and draw a slope triangle connecting the two points. Label the legs of the triangle.

To graph a parabola, use the coefficient a and coefficient b values from your parabolic equation in the formula x = -b ÷ 2a to solve for x, which is the first coordinate of the vertex. Next, plug x back into your equation to solve for y, which is the second coordinate of the vertex.

Have a goClick to see a step-by-step slideshow.YOU WILL NEED: A whiteboard.STEP 1 - Draw a table of values for the x and y coordinates.STEP 2 - Using the equation y = 2x + 1, calculate the value of y by using the x value in the table.STEP 3 - Draw a graph and label the x axis 1 to 4 and the y axis 1 to 9.More items...