The graph of y=5X^2-5 is the graph of y=X^2-1 stretched vertically or horizontally?
I get that it streches by 5 but how do i tell if its vertical or horizontial?
What are the x and y intercepts of F(x)=4xsquared-1?
i got +or-1/8 for the x intercept but im sure its wrong. I thought i got it in class but i guess not. Why is math pure 30 required for college
Any thing done before the "main function" changes x (and so affects the graph horizontally), anything done after the "main function" changes y (and so affects the graph vertically).
Here your "main function" is given as . multiplies by 5 after doing and so affects the graph vertically.
The x-intercepts are where the graph "intercepts" the x-axis and so y= 0. is the same as or . The x-intercepts are at x= and . Some people refer to the "x-intercepts" as just the x value ( and ) and some as the points ( and . Check with your teacher or textbook to see which convention is used in your class.
The y-intercepts are where the graph "intercepts" the y-axis and so x= 0. Just put x= 0 into to get y= -1. Again, the y-intercept is either the value y= -1 or the point (0, -1) depending on the convention used.
I have no idea what "math pure 30" is but (liberal arts) colleges want you to be educated in a broad range of subjects. You will very likely be required to take at least one mathematics course in college.