2 years ago

Four students graphed one linear function each. Which student graphed a linear function with a y-intercept at –4?

Mathematics

2 answers:

GarryVolchara [31]2 years ago

8 0

Ellis did. On the graph the line lands at -4 at the y-intercept

Maurinko [17]2 years ago

4 0

Rhett did because if u look at the graph it lands on -4

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Is line 1 (1,5) (3,-2) and like 2 (-3,2) (4,0) perpendicular of parallel?

Lera25 [3.4K]

Slope Formula: $\frac{y_2-y_1}{x_2-x_1}$

So remember that perpendicular lines have slopes that are negative reciprocals to each other and parallel lines have the same slope. To find out if they are either parallel or perpendicular, plug the pair of points into the slope formula to find their slopes:

$\textsf{Line 1}\\\\\frac{5-(-2)}{1-3}=-\frac{7}{2}\\\\\textsf{Line 2}\\\\\frac{0-2}{4-(-3)}=-\frac{2}{7}$