Which method below is not a method of solving a system of linear equations? Group of answer choices

Differentiation

Graphing

Elimination

Substitution

Differentiation

Step-by-step explanation:

Differentiation is used in only differential equations, finding limits and curve sketching.

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1 1/4 hours

step-by-step explanation:

2/4 + 2/4 + 1/4 = 5/4 or 1 1/4

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.