How do you graph y = x^2- 5x + 4y=x2−5x+4 using a table of values?

1 Answer
sankarankalyanam
Sep 30, 2017

graph{y=x^2-5x+4 [-4.494, 7.79, -4.033, 2.107]}

Explanation:

y=x^2-5x+4y=x2−5x+4
When x = 1,
y=1-5+4=0y=1−5+4=0
When x = 2,
y=4-10+4=-2y=4−10+4=−2
x = 0, y = 4
x = -1, y = 10
x = -2, y = 18
For various values of x, y is calculated and tabled below and plotted in a graph.

| x 5 4 3 2 1 0 -1 -2 -3 -4 -5 |
| y 4 0 -2 -2 0 4 10 18. 28 40 54 |

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