Triangle mrn is created when an equilateral triangle is folded in half. what is the value of y?

Y=4x^2+x-1 solve using quadratic formula

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)