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A curve has equation y=x^2 + (3k - 4)x + 13 and a line has equation y = 2x + k, where k is constant. Show that the x-coordinate of any point of intersection of the line and curve satisfies the equation: x^2 + 3(k - 2)x + 13 - k = 0

When we deal with points of interception, this immediately indicates that these two equations have to equal. Therefore, begin by equaling these two equations: x^2 + (3k - 4)x + 13 = 2x + k Bring all figur...

HW
Answered by Helena W. Maths tutor
11526 Views

Solve 5x - 6 = 3x + 7

Rearrange the equation so that both x's are on the same side of the equation, making sure that you change the sign of the number you bring across: 5x - 3x = 7 + 6 Now simplify: 2x = 13 Divide by 2: x = 13...

HW
Answered by Helena W. Maths tutor
7642 Views

What is the difference between using als and wenn?

Als is used for a sentence that is in the past, for example 'als ich jünger war...' when I was younger. Wenn is used to mean 'if or when' and often has a conditional sense, for example 'wenn ich mehr Geld...

JF
Answered by Jennifer F. German tutor
21647 Views

How did you learn French ?

French is my native language

FM
2518 Views

Will the courses be entirely in French ?

Mainly yes, expect when I need to make sure you properly understand what I say, otherwise no worries if you dont get everythings, it remains the best way to learn

FM
2197 Views

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