In slope-intercept form y = mx +b, the y-intercept is located at (0,b). a. What equation results from substituting (0,b) for (x1.y1) in the point-slope form y-y1= m(x - x1)?
b. How are the slope-intercept and the point-slope forms related?
a. When (0,b) is substituted for (x1.yı) in the point-slope form y-yı = m(x-1), the result is

Ithink the answer is a

Set square i think so

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First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.