Graphing Linear Equations Slope-Intercept Form and Key Feature review
If you need to review, watch the video Graphing Lines on a Coordinate Plane Answer the following questions by filling in the blank with the missing information. 1. Given the equation, y = 4x + 7, the y-intercept of the graph would be at the point (0, 7)2. Given the equation, y = 4x + 7, the slope of the graph would be 4.3. Given a y-intercept of (0, 2) and a slope -3, the equation of a graph in slope intercept form would be y = -3x + 2.4. The equation x = -7 would be a vertical line when graphed5. The slope of a line is the change in y over the change in x. Graph the following linear equation using the slope-intercept method:y = 2x - 1 Graph the following linear equation using the slope-intercept method:3x + 2y = 14 Matching Activity: Match the equations and graphs in the diagram below. To submit an answer, click on the blue circle and type the number of the corresponding equation. FOR EXAMPLE: The first graph matches equation #4 since it has a y-intercept of 0 and a slope of 1. To submit this answer, click the blue dot under the graph and type only the number 4.*NOTE: If you type anything other than a number, the answer will be marked incorrect! Each number will be used only once!* 2 4 6 1 3 5 Name the positive interval."For what values of x are the y values positive?" (1,3) (0,6) (2,4) All real numbers Name the interval of increase."For what values of x are the y values increasing?" (-infinity, -1) (-1, infinity) (-3, 1) (-infinity, 2) Name the interval of decrease."For what values of x are the y values decreasing?" (4, infinity) (-infinity, -1) (1, infinity) (-infinity, 1)