Drag each system of equations to the correct location on the graph. Match each system of equations to its point of intersection.
y = 2x + 1
y = x + 3
y = x + 3
y = -3x − 2
y = -x − 7
y = x + 3
y = -x − 7
y = 2x + 1
y = 2x + 1
y = -3x − 2

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z