Questions 10,11 and 12 please!
1 answer:
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Answer:
y = 2x - 11
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - x + 1 ← is in slope- intercept form
with slope m = -
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= 2 , then
y = 2x + c ← is the partial equation
To find c substitute (8, 5) into the partial equation
5 = 16 + c ⇒ c = 5 - 16 = - 11
y = 2x - 11 ← equation of perpendicular line
Answer:
A, D, E
Step-by-step explanation:
My favorite way to solve systems of nonlinear equations is to <em>use a graphing calculator</em>. The attached picture shows solutions to be near ...
x ≈ -1.18 . . . . choice A
x ≈ 2.26 . . . . choice D
x ≈ 3.28 . . . . choice E
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Other methods of solution might be to <em>use a table or spreadsheet</em> to show function values of each of the functions, or trying the offered values in the equations to see which ones are close.
