www.columbia.edu/itc/sipa/math/systems_linear.html

By setting first x and then y equal to zero it is possible to find the y intercept on the
vertical ... If x = 0, then f(0) = 1 + .5(0) = 1. If y = 0, then f(x) = 0 = 1 + .5x. -.5x = 1. x
= -2 .... y = 3. Step 3: Solve for x in either of the original equations. 2x + 3(3) = 5.

www.purplemath.com/modules/syseqgen4.htm

As before, I'll set these equations equal, and solve for the values of x: 2x<sup>2</sup> + 3x +
... y = (<sup>1</sup>/2)x – 5 = (<sup>1</sup>/2)(<sup>5</sup>/2) – 5 = <sup>5</sup>/4 – <sup>20</sup>/4 = – <sup>15</sup>/4 = –3.75. When x ... x + y = 2 y
= –x + 2. Then: xy = 1 x(–x + 2) = 1 –x<sup>2</sup> + 2x = 1 –x<sup>2</sup> + 2x – 1 = 0 x<sup>2</sup> – 2x + 1 = 0

www.montereyinstitute.org/courses/DevelopmentalMath/COURSE_TEXT2_RESOURCE/U17_L2_T1_text_final.html

For example, y = 4x +1 is an equation that represents a function. ... changes a
number according to a specific rule, such as “multiply by 3 and add 2” or “divide
by 5, add 25, and multiply by −1. ... f(x)= 4x + 1 is written in function notation and
is read “f of x equals 4x plus 1. .... Given f(x) = 3x<sup>2</sup> + 2x + 1, find f(0), f(2), and f(...

www.themathpage.com/alg/equation-of-a-line-2.htm

... graph of a straight line. The equations of vertical and horizontal lines. ...
Calculate the value of x when y = 0, that is, find the x-intercept of y = 2x + 10.
Solution.

www.math.ucdavis.edu/~kouba/CalcOneDIRECTORY/implicitdiffsol2directory/ImplicitDiffSol2.html

2x + ( xy' + (1)y ) + 2 y y' = 0 , ... To find y'' , differentiate both sides of this equation,
getting .... the first derivative y' does not exist, then the denominator in Equation 1
equals zero (Why?) ... If x=0 in the original equation (x<sup>2</sup>+y<sup>2</sup>)<sup>2</sup> = 2x<sup>2</sup>-2y<sup>2</sup> , then.

www.themathpage.com/aprecalc/roots-zeros-polynomial.htm

1. What is a polynomial equation? It is a polynomial set equal to 0. P(x) = 0. P(x)
... Then a root of that polynomial is 1 because, according to the definition: P(1), =
5· 1<sup>3</sup> − 4· 1<sup>2</sup> + 7· 1 − 8. = 5 − 4 + 7 − 8. = 0. ... The y-intercept is that value of y
where the graph crosses the y-axis. ... a) Find the root of the polynomial 2x + 1...

www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.159004.html

x>0,y>0 .... x+y<8 -x -x ______. Y<-x+8 2x+y<10 -2x -2x ______ y<-2x+10 ... for
both equations to be equal with the same values of x and y in each, x must = 2
and y must = 6. .... then x + y < 8 becomes .5 + 8 which is not < 8 so it fails the test.
... since it passes the test for both equation, that value is goo...

www.analyzemath.com/math_questions/math_questions_1_sol.html

If the graph of f is a parabola with vertex on x axis and opening up, then the ...
When a parabola represented by the equation y - 2x <sup>2</sup> = 8 x + 5 is translated 3 ...
sin(0) = 0 and cos(0) = 1, and from x = 0 to x = pi/2, sin(x) increases from 0 to 1 ....
electronic device produced by a company does not function properly is equal to
0.1...

www.analyzemath.com/math_questions/math_questions_2_sol.html

Solution y = Log(x) if and only if x = 10 <sup>y</sup>. Interchange x and y y = 10 <sup>x</sup>. Hence f <sup>-1</sup>(
x) = 10 ... equal to 2. Hence their exponents has also to be equal 3x - 1 = 4. Solve
for x x = 5/3 ... The roots of the equation x / (x + 2) + 3 / (x - 4) = (4x + 2) / (x <sup>2</sup> - 2x -
8) are .... If x is an angle such that tan(x) = 5/12 and Pi < x < ...

www.varsitytutors.com/sat_math-help/how-to-find-x-or-y-intercept

(–48,0). Explanation: When the equation crosses the x-axis, y = 0. Plug 0 into the
equation for y, and solve for x. 4(0) – x ... Or Y Intercept. Where does the graph of
2x + 3y = 15 cross the x-axis? Possible Answers: (0,-5) ... Y Intercept. The slope
of a line is equal to -3/4. ... When the line crosses the y-axis, then x = 0 and y = 4...